Brief Introduction of Shanghai Bus Vehicle Access Control Management and Vehicle Condition Inspection Information System
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1 System function
The system is completely built on a network platform, through the network to carry out real-time data collection, transmission, printing, statistics, query, analysis and other processing of vehicle entry and exit status and vehicle condition inspection information. The system is divided into two parts: vehicle access control management and vehicle condition inspection.
1.1 Vehicle access control management system
The vehicle access control management system manages the specific entry and exit time of the taxi and whether there is a maintenance plan through the 915MHZ RFID UHF electronic tag encapsulated in the car.
1.2 Vehicle condition inspection information system
The vehicle condition inspection information system uses 13.56MHZ RFID HF electronic tags encapsulated in the car to inspect 38 items of vehicle condition information of the taxi and print the inspection results as an inspection receipt. At the same time, the inspection data is transmitted to the back-end server in real time. For inquiries by related departments.
2 System workflow
2.1 915MHZ access control management workflow
This system uses long-distance radio frequency (UHF UHF) non-contact automatic identification technology to automatically read vehicle information in RFID. As shown below:
2.1.1, approaching vehicles
When a taxi with 915MHZ RFID enters the field, within the effective distance of 5M-8M, the electronic tag reader A will beep, and the PC connected to the internal LAN will display the time and time of the taxi’s entry. Vehicle number, vehicle company, vehicle department. At the same time, the read data will be transmitted to the server in real time and matched with the maintenance plan in the background server. If the car is in the maintenance plan, the display screen connected to the PC will scroll and display “The scheduled maintenance time for XXXXXX car today is XX:XX, needs cleaning”, and the speaker will say “XXXXXX car needs XX level maintenance today, maintenance The time is XX hour XX minute, need XX cleaning” sound.
2.1.2 Vehicles on the scene
When the vehicle is out of the field, the electronic tag reader B will automatically read the basic information of the 915MHZ RFID in the vehicle within the effective distance of 5M-8M, and use the RS232 serial port to send the taxi’s departure time, vehicle number, vehicle company, etc. The vehicle-owned department data is transmitted to the back-end database in real time.
The access control management system is completely structured on the network platform. It has the functions of convenient and fast information collection, safe and reliable transmission, minimizes human factors, improves the efficiency of vehicle access control management, and realizes real-time and intelligent vehicle management. And automation.
This system is technically leading domestically and advanced internationally.
2.2 13.56MHZ vehicle condition inspection workflow
2.2.1, checkpoint
Vehicle condition information inspection workflow
Before the taxi conducts vehicle condition information inspection, the inspector enters his job number into the POS machine. When the taxi enters the checkpoint, the inspector holds the RFID POS to read the 13.56MHZ RFID on the right window of the car. After the beep is finished, the inspection time, number, company, and department of the car Will be read out and stored in the RFID POS. At the same time, 15 lines of vehicle inspection items will be displayed on the RFID POS screen. Press the up and down direction keys on the POS ∧ ∨ to select, press the left and right direction keys ﹤ ﹥ to turn the page to select all the inspection items; press the MENU button to check the status of the items The choice of YES or NO (or use the stylus to choose YES or NO). After checking, press OK key, the screen displays press 1 to save and print. The inspection results are saved in the 13.56MHZ RFID and transmitted to the PC via wireless transmission. The inspection results will be transmitted to the back-end database in real time for comparison with the maintenance plan in the database. If the inspected vehicle is in the maintenance plan, the database will feed back the information to the PC, and the POS printer will print the vehicle maintenance time and inspection results; if it is not in the maintenance plan, the POS printer will directly print the inspection results. The printing process of the inspection result is as follows:
2.2.1.1. Check the eligibility in the maintenance plan-print sample 1
In the maintenance plan and the inspection items are all qualified, the printed samples are:
Vehicle door inspection documents
Shanghai Bus Taxi Co., Ltd.
————————————————– ————
Order number: 070612 DW9383 BS64 0001
Time: 2007-06-12 10:30:30
Machine number: 41603470 Inspector: BS347
————————————————– ————-
★Car 9383 is scheduled for maintenance today at 14:00 and needs cleaning
————————————————– ————-
Congratulations, all the inspected items are qualified!
————————————————– ————-
Cleaning quality inspection
————————————————– ————-
Please keep it properly ★Go out with this bill
2.2.1.2. Check the unqualified status in the maintenance plan-print sample 2
When there are unqualified items in the inspection items, press the MENU button on the upper left side of the RFID POS to change the qualified status of the inspection items, or click the item on the touch screen to confirm the unqualified items. After the inspection is completed, click the OK button of the RFID POS, the screen shows that press 1 button to save Print, press the 1 key and then the inspection result will be wirelessly transmitted to the PC, and the vehicle number and inspection time will be transmitted to the back-end database in real time to match the vehicle number and maintenance time in the maintenance plan. The vehicle number is in the maintenance plan There will be car XXXX in the printed sample that needs cleaning at 14:00 today, and the door inspector will evaluate the cleaning quality. The print proofs are as follows:
Print sample 2 The unqualified door inspection form in the maintenance plan
Vehicle door inspection documents
Shanghai Bus Taxi Co., Ltd.
————————————————– ————-
Order number: 070612 DW9383 BS64 0001
Time: 2007-06-12 10:30:30
Machine number: 41603470 Inspector: BS347
————————————————– ————-
★Car 9383 is scheduled for maintenance today at 14:00 and needs cleaning
————————————————– ————-
1 Front bumper 2 Rear lights
3 seat cover 4 ashtray
5 Instrument panel 6 Compartment air
7 Sun visor 8 Vehicle facilities
————————————————– ————-
Cleaning quality inspection
————————————————– ————-
Please rectify the above unqualified items in time, thank you!
Please keep it properly ★Go out with this bill
2.2.1.3. Check the qualification status outside the maintenance plan-print sample 3
When there are unqualified items in the inspection items, press the MENU button on the upper left side of the RFID POS to change the qualified status of the inspection items, or click the item on the touch screen to confirm the unqualified items. After the inspection is completed, click the OK button of the RFID POS, the screen shows that press 1 button to save To print, press the 1 button and the inspection result will be wirelessly transmitted to the PC, and the vehicle number and inspection time will be transmitted to the background database in real time. The print sample is as follows:
Print sample 3 Out-of-maintenance inspection qualified door inspection sheet
Vehicle door inspection documents
Shanghai Bus Taxi Co., Ltd.
————————————————– ————-
Order number: 070612 DW9383 BS64 0001
Time: 2007-06-12 10:30:30
Machine number: 41603470 Inspector: BS347
————————————————– ————-
Congratulations, all the inspected items are qualified!
————————————————– ————-
Please keep it properly ★Go out with this bill
2.2.1. 4, check the unqualified conditions outside the maintenance plan-print sample 4
When there are unqualified items in the inspection items, press the MENU button on the upper left side of the RFID POS to change the qualified status of the inspection items, or click the item on the touch screen to confirm the unqualified items. After the inspection is completed, click the OK button of the RFID POS, the screen shows that press 1 button to save After printing, press the 1 button and the inspection result will be wirelessly transmitted to the PC, and the vehicle number and inspection time will be transmitted to the background database in real time. The print proofs are as follows:
Print sample 4 Unqualified door inspection form outside the maintenance plan
Vehicle door inspection documents
Shanghai Bus Taxi Co., Ltd.
————————————————– ————-
Order number: 070612 DW9383 BS64 0001
Time: 2007-06-12 10:30:30
Machine number: 41603470 Inspector: BS347
————————————————– ————-
1 Front bumper 2 Rear lights
3 seat cover 4 ashtray
5 Instrument panel 6 Compartment air
7 Sun visor 8 Vehicle facilities
————————————————– ————-
Please rectify the above unqualified items in time, thank you!
Please keep it properly ★Go out with this bill
Note:
1. The single number is composed of 20 digits, which is: year, month, day + vehicle number + self-number + serial number
Its meaning is as follows:
XX XX XX XXXXXX XXXX XXXX
Vehicle inspection serial number
Car belongs to
Car number
year month day
2. The inspector number is composed of 6 digits, which is: company + serial number
XX XXX
Inspector serial number
Company code
3. The cleaning quality is tested as secondary cleaning.
After checking, write the checked result into 13.569MHZ RFID.
The POS machine can transmit the inspection results to the back-end database in real time, and transmit the inspection results to the repair shop, the vehicle management department, the operation department, and the gate guard accordingly through the local area network. The flow chart is as follows:
The vehicle condition information inspection system can conveniently exchange data and share resources with each taxi inspection station. Achieve fast and accurate upload and release of inspection data related to vehicle conditions; it has functions such as entry, modification, sorting, query, data statistics, report printing and issuance, authority management, data transmission, and leadership query; the system adopts high-tech to be fast and effective Collect vehicle condition inspection information in order to quickly retrieve and print; improve the efficiency and real-time performance of vehicle condition information inspection, minimize human factors, and increase the technological content of vehicle condition inspection; the system is technologically advanced in China and internationally advanced Features.
2.2.2, repair shop
Vehicle inspection result processing workflow
After the vehicle inspection is completed, the driver gets the corresponding inspection voucher.
2.2.2.1. Direct appearance
If it is qualified, the car can go out directly with this receipt. If the receipt is lost, the driver will go to the checkpoint to read the electronic tag of the car through RFID POS and take the missing sample. With this proof, Zhang Mengang will be released.
2.2.2.2 Qualified rectification
If it is unqualified, the driver will take the documents and go to the repair shop for rectification. The maintenance personnel will record the repair time, vehicle number, vehicle company, vehicle department, and driver’s job number in the PC according to the proofs held by the driver. After passing the certificate, the corresponding record will be made on the receipt. After the rectification is completed, the rectification result will be written on the sample sheet and entered into the computer.
The PC transmits the refurbishment results to the vehicle management department, the operation department, the leaders in charge, the leaders, and the guards accordingly through the local area network. The driver exits the warehouse with this document. If the document is lost, the gatekeeper can read the electronic tag of the vehicle through the RFID POS, and the RFID POS touch screen will display qualified and confirm the release.
2.2.2.3. Make an appointment for rectification
The taxi enters the repair shop for rectification. Due to certain conditions, the corresponding rectification cannot be carried out on the same day. The repair shop will record the appointment rectification and record the processing result in the computer. Record the appointment time, vehicle number, vehicle company, vehicle department, and appointment number to the PC. The PC transmits the repair results to the vehicle management department, the operation department, the leaders in charge, the leaders, and the guards through the local area network. The driver takes an appointment rectification sheet and takes it out of the warehouse.
When the appointment time is reached, the driver will take this document to the repair shop again for rectification. After the rectification is completed, the repair shop will record the result of the appointment rectification, the vehicle number, the ownership of the fleet, and the driver’s ID to the PC connected to the local area network. The driver took the reservation rectification result voucher out of the warehouse.
2.2.2.4. Sign and release
The result of the taxi inspection is unqualified and the driver does not go to the repair shop for repairs, then the driver takes the printed receipt to the operation department, which is signed by the leader of the operation department, and the driver leaves the house with the signature of the leader.
The work flow chart for processing vehicle inspection results is as follows:
2.2.3 Door inspection
Work flow after the vehicle is checked out
After the vehicle is checked out
When the taxi leaves the warehouse, the gate inspector will release it according to the voucher presented by the driver. The driver’s voucher contains inspection items for the cleaning of the vehicle’s condition. The gate inspector fills in the processing results when releasing the vehicle. If it is qualified, the cleaning vehicle condition test is YES, the inspector takes back the voucher, and the vehicle is released; if the cleaning vehicle condition is tested If it is NO, then the vehicle needs to be refurbished. After the refurbishment is qualified, the voucher shall be taken back and the vehicle shall be released.
3 System characteristics
1. Real-time data
When the vehicle enters the warehouse, the card reader A will automatically read the vehicle number and display it on the porter’s PC. At the same time, the data will be transmitted to the back-end database in real time, and checked against the vehicles in the maintenance plan. In the maintenance plan , The screen at the door will display: XXXX car XX:XX needs XX maintenance, and the synchronized voice system will sound the XXXX car XX:XX needs XX maintenance to remind the driver when the vehicle needs XX maintenance Do maintenance.
During the vehicle condition information inspection process, the inspector transmits the data to the concierge PC via wireless transmission, and transmits the data to the back-end database through the internal LAN in real time, and proofreads the vehicle in the maintenance plan. In the maintenance plan, the result is printed indicating that car XXXX is scheduled for maintenance today Cleaning is required at 14:00 and printing quality inspection status. If it is not in the maintenance plan, the inspection result will be printed directly and handed to the driver as a voucher.
2. Wireless transmission
When the vehicle inspection is printed, when the inspector finishes the inspection, press the OK button and the screen will display press 1 to save and print. After pressing 1, the inspection result is saved in the label and the voucher is printed directly through the wireless module.
3. Read the maintenance plan in real time and print it
When the RFID POS wirelessly transmits the inspection results to the PC, the PC will transmit the data to the back-end database in real time, and check the vehicle with the maintenance plan. In the maintenance plan, the maintenance time and maintenance quality status will be reflected in the printed voucher.
4. Microsoft TTS speech synthesis technology, screen display
When the vehicle enters the warehouse, the card reader automatically reads the vehicle number, records the time of entering the warehouse, and sends the vehicle number to the background database in real time for comparison with the maintenance plan. In the maintenance plan, the voice system will send out “XXXX number car XX: The screen synchronized with XX point needs maintenance will scroll and display “XXXX car XX:XX point needs maintenance” to remind the driver.
5. Advanced speech synthesis technology
The synthesis system includes a speech server interface and a synthesis kernel. The synthesis core is composed of a synthesizer and a speech library. The speech library can be replaced as needed to produce synthetic effects and styles. The voice server interface calls the synthesis core to respond to client requests through the TCP/IP interface. As shown below.
6. High frequency and UHF can work together
The access control management system uses UHF RFID to automatically read the vehicle number and remind the driver whether there is a maintenance plan at the door; the vehicle condition information check uses high-frequency RFID to print maintenance plan and non-maintenance plan documents in real time to remind the driver of maintenance.
7. The system is stable and reliable
The access control management identification process is completed by the 915MHZ card reader, and the control host is responsible for searching and identifying. The entire process does not require manual intervention, and the error rate tends to zero.
8. Advanced B/S architecture
The system adopts the B/S structure that is currently popular in enterprises, fully follows its advanced and reasonable design principles, adopts the most optimized system operating environment, and uses the same hardware and software model versions.
9. Strong system data confidentiality
Before the vehicle inspection, the inspector needs to enter the work number and password to enter the RFID POS program. After the POS is shut down, the inspector’s employee number must be re-entered to enter.
10. Adopting domestic advanced RFID PDA POS, easy and convenient operation
RFID PDA POS is a new generation of smart handheld data processing terminal equipment with high reliability, low power consumption, simple operation, modular design, etc. It provides abundant software interfaces, hardware resources, and provides large-capacity lithium polymer batteries with super long During the working hours, with ARM 32bit embedded software standard operating system platform (uL-OS) to ensure that the embedded software system runs more stable and reliable.
SRR310 uses a unique RFID antenna design to avoid blind areas in RFID swiping, and uses a unique power meter in the uL-OS embedded operating system platform to manage the power consumption of handheld POS more scientifically. The high-definition, high-gray LCD screen makes The entire POS is more atmospheric and intuitive to operate. The mobile phone key structure design brings better feel and reliability to the keys. The touch screen and touch pen make the graphic operation more intuitive and show the smart style of PDA-type handheld POS, avoiding cumbersome Key operation and input.
RFID PDA POS has a built-in wireless module, which can transmit data to the PC in the door room through wireless transmission in real time to print the inspection results in real time; RFID PDA POS has a large screen display, which can display 15 lines of Chinese characters per page, reducing the number of page turning; It is a touch screen, and the qualified status can be changed directly with a pen.
11. Adopting computer control and data processing technology, with high degree of automation, accurate control and high technological content.
In the 915MHZ access control management system, vehicle entry and exit time management, maintenance plan reminders without manual intervention, automatic reading of the vehicle number through the card reader, and comparison with the database maintenance plan, in the plan through the screen display, voice prompts to notify the driver , Greatly improve work efficiency and technological content.
During the vehicle inspection, the large-screen RFID POS displays 11 vehicle inspection items on each page, which shortens the number of page turns, saves vehicle inspection time, and improves efficiency. Through the advanced wireless transmission module, the data is transmitted to the PC in real time, and the results are displayed in real time. print it out.
13.56MHZ is combined with 915MHZ to transmit the data to the database in real time, and feedback to the concierge PC in real time by searching the database for real-time printing, voice reminder, and screen reminder.
4 System comparison
1. In the handheld POS printer system, the inspection results will be printed out in real time, but the inspected data cannot be transmitted to the back-end database in real time but stored in the POS machine. After the vehicle inspection is completed, the data will be transmitted to the database, so It is impossible for him to print the maintenance plan in real time. The POS machine has a front-mounted printer, so the screen will be reduced. The inspection items displayed on the screen are only three lines. You need to turn multiple screens to complete the inspection items; the POS inspection machine and the printer are integrated, and work will consume a lot of electricity. So the use time is shorter than RFID POS; its cost is very high.
2. The vehicle condition information inspection systems of other companies are all manual. Some companies use scanners for inspection, and there are a lot of drawbacks in their working methods. When inspecting the vehicle condition, the inspector holds the scanner to aim at the unqualified items to scan and record. If a few unqualified items are scanned several times, the system is cumbersome; if the staff scans errors during the inspection, the system cannot correct the errors and can only re-scan. Inspection wastes working time and reduces work efficiency; the inspected items are sent to the database after scanning, but the staff cannot easily check the unqualified items, which is not intuitive and has low technological content.
3. The access control management of most companies is manual recording, and a few companies adopt HF RFID management, and the operation process is manual. When the taxi enters the garage, the staff scans the label attached to the right side of the windshield with a handheld device, and records the vehicle number and time of entry into the computer. The system has a low degree of automation and does not substantially improve efficiency.
4. The access control management adopts active tags to reach a distance of 50-100M, but it has a maximum anti-collision performance of 125 pieces per second, that is, all vehicle numbers will be read within the read range, so the vehicle entry and exit time Inaccurate; the tag’s working frequency is 2.45GHZ, and it is an active tag. The tag manufacturing process and antenna are fundamentally different. The tag has a built-in power supply, so the cost is quite high compared with passive tags.
5. The vehicle condition inspection information system uses long-distance radio frequency non-contact automatic identification technology to read the ID number in the RFID. The system integrates the comprehensive application of long-distance radio frequency identification, computer network and automatic control technologies, improves management efficiency, and realizes intelligent, scientific and automated vehicle detection. The system integrates various processing such as information collection, classification, summary, analysis, query, and statistics. Various operations can be performed through the menu or through the system’s management tree navigation. Information entry is intelligent, which greatly improves work efficiency. The operation is fast and convenient, the performance is efficient and powerful; the use is easy to understand and easy to understand.
According to the requirements of rental vehicle management, the data is classified, counted, summarized, and analyzed by the rental management system. Make full use of the data in the system maintenance to set up auxiliary input, reduce the input workload, improve work efficiency, reduce work intensity, provide a modern management method for taxi companies, and maintain the integrity and timeliness of various data Integrity and accuracy have improved the management system and improved the management level.
The development and application of this system enables users to switch from the original manual operation method to the digital information management method, greatly improving work efficiency and accuracy.
6. The vehicle access control management system manages the number of the taxi, the time of entry and exit, and whether there is a maintenance plan through the RFID card encapsulated in the car.
This system uses long-distance radio frequency non-contact automatic identification technology to automatically read the ID number in the RFID. The system integrates the comprehensive application of remote radio frequency identification, computer network and automatic control technologies to improve management efficiency and realize the intelligent, scientific and automated vehicle access control management.
7. The management software has various management functions:
(1) Management function: information collection and inspection results storage, import, query and other functions for the vehicles under vehicle condition inspection.
(2) Maintenance project management function of the maintenance plant: through the data statistics uploaded by each maintenance plant, the status of various taxi maintenance projects can be inquired, counted, and reports are generated, which can provide management and decision-making basis for the supervision department.
(3) Management and supervision center: through the judgment of the inspection information, it can deal with or rectify unqualified vehicles, and can carry out effective supervision and assessment of each operation department.
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