Method and system for vehicles to exit a parking lot when the network is disconnected

Abstract

The present invention provides a method and system for vehicle exit in a parking lot disconnected from the Internet, and relates to the technical field of parking lot management. The method comprises: identifying a payment QR code located at the exit side of the parking lot, and when it is determined that the parking lot is disconnected from the Internet, calling a preset display box to receive a first input from a user, decrypting a first target digital string, and obtaining the current recognition time, device number, and current license plate number; when it is determined that the target license plate number is the same as the current license plate number, receiving a second input from the user in a preset display box; encrypting the current vehicle information, payment amount, and payment time, generating a second target digital string, and instructing a receiving device at the exit side of the parking lot to receive the second target digital string. The present invention reduces the problem of online payment users being unable to exit the parking lot due to the disconnection of the device system, reduces the probability of congestion at the parking lot exit, saves emergency manpower costs for parking lot operators, and reduces business losses caused by free release.

Description

Technical Field

[0001] The present invention relates to the technical field of parking lot management, and in particular to a method and system for vehicles to exit a parking lot when the parking lot is disconnected from the Internet. Background Art

[0002] In the existing parking lot management, there are many unattended management modes. By using the parking system cloud platform to receive vehicle payment information, the cloud platform sends the payment completion information to the on-site equipment control end for verification. If the license plate number photographed by the exit equipment is consistent with the license plate number in the paid vehicle information sent by the cloud platform, and the payment time is within the specified time, the on-site equipment control end will issue a gate opening command to automatically release the vehicle.

[0003] However, the above method is extremely dependent on the quality of Internet connection. If the cloud platform loses Internet connection with the on-site equipment control terminal and there is no one on duty on site, the car owner's online payment information cannot be transmitted to the equipment control terminal for verification, resulting in the on-site equipment control terminal being unable to issue a command to open the gate. In order to avoid congestion caused by parking lot equipment being disconnected from the Internet, it is usually adopted to send people to the site to be on duty after the network is disconnected or to automatically release the gate for free, resulting in additional increase in labor costs and loss of operating income.

[0004] At present, there is no technical solution that can solve the above technical problems, and there is no method and system for vehicles to exit the parking lot when the parking lot is disconnected from the Internet. Summary of the invention

[0005] The present invention provides a method and system for vehicle exit in a parking lot when the network is disconnected. Without using short-range communication equipment, the method utilizes a preset encryption and decryption algorithm deployed on an intelligent terminal and a control terminal at the exit side of the parking lot to realize data reception and transmission, and complete the entire vehicle exit process of vehicle identification and verification, payment, and release of the vehicle.

[0006] In a first aspect, the present invention provides a method for vehicle exiting a parking lot in a disconnected state, which is applied to a smart terminal side and includes:

[0007] Identify the payment QR code at the exit of the parking lot, and when it is determined that the parking lot is disconnected from the Internet, call a preset display box corresponding to the payment QR code to receive a first input from the user, wherein the first input includes a first target digital string and a target license plate number obtained from the display screen at the exit of the parking lot;

[0008] In response to the first input, decrypt the first target digital string to obtain current vehicle information, the current vehicle information including current identification time, device number and current license plate number;

[0009] In the case where it is determined that the target license plate number is the same as the current license plate number, receiving a second input from the user in the preset display box, the second input including a payment amount obtained from a display screen at the exit side of the parking lot;

[0010] In response to the second input, the current vehicle information, payment amount and payment time are encrypted to generate a second target digital string, and the receiving device at the parking lot exit is instructed to receive the second target digital string.

[0011] According to the method for vehicle exiting a parking lot in a disconnected state provided by the present invention, the decryption of the first target digital string to obtain current vehicle information includes:

[0012] Decrypting the first target digital string using a preset key to obtain a first target character string;

[0013] Determine the UNIX timestamp, the ASCII character corresponding to the device number, and the ASCII character corresponding to the current license plate number according to the first target character string;

[0014] The current recognition time is determined according to the UNIX timestamp, the device number is determined according to the ASCII characters corresponding to the device number, and the current license plate number is determined according to the ASCII characters corresponding to the current license plate number.

[0015] According to the method for vehicle exiting a parking lot in an off-network state provided by the present invention, the encryption of the current vehicle information, the payment amount and the payment time to generate a second target digital string includes:

[0016] Convert the payment amount into the ASCII characters corresponding to the payment amount, and convert the payment time into the ASCII characters corresponding to the payment time;

[0017] Determine a second target character string according to the first target character string, the ASCII character corresponding to the payment amount, and the ASCII character corresponding to the payment time;

[0018] The second target character string is encrypted according to the preset key to generate a second target digital string.

[0019] According to the method for vehicle exiting a parking lot in a disconnected state provided by the present invention, the receiving device includes a sound pickup device or a QR code recognition device;

[0020] In the case where the receiving device is the sound pickup device, after generating the second target digital string, the method further includes: converting the second target digital string into an audio file, and playing the audio file within a preset range of the sound pickup device;

[0021] In the case where the receiving device is the two-dimensional code recognition device, after generating the second target digital string, the method further includes: converting the second target digital string into a two-dimensional code to be recognized, and displaying the two-dimensional code to be recognized to the two-dimensional code recognition device.

[0022] In the second aspect, a method for vehicles to exit a parking lot when the network is disconnected is provided, which is applied to a control terminal at the exit side of the parking lot, and includes:

[0023] Using a license plate recognition device to obtain a current license plate number, and when determining that the parking lot is disconnected from the Internet, generating a first target digital string according to the current license plate number, the current recognition time, and the device number, and displaying the first target digital string on a display screen at the exit side of the parking lot;

[0024] Determine the payment amount according to the current recognition time and the historical entry time, and display the payment amount on a display screen at the exit of the parking lot;

[0025] Receiving a second target digital string from the smart terminal, decrypting the second target digital string, and obtaining current vehicle information, payment amount, and payment time, wherein the current vehicle information includes current identification time, device number, and current license plate number;

[0026] The current vehicle information, the payment amount and the payment time are verified, and if it is determined that the verification is passed, a release instruction is generated, wherein the release instruction is used to instruct the lifting rod to be lifted.

[0027] According to the method for vehicle exiting a parking lot in an off-network state provided by the present invention, generating a first target digital string according to the current license plate number, the current recognition time and the device number includes:

[0028] Convert the current recognition time into a UNIX timestamp, convert the current license plate number into the ASCII character corresponding to the current license plate number, and convert the device number into the ASCII character corresponding to the device number;

[0029] Generate a first target character string according to the UNIX timestamp, the ASCII character corresponding to the current license plate number, and the ASCII character corresponding to the device number;

[0030] The first target character string is encrypted according to a preset key to generate a first target digital string.

[0031] According to the method for vehicle exiting a parking lot in an off-network state provided by the present invention, the decryption of the second target digital string to obtain current vehicle information, payment amount and payment time includes:

[0032] Decrypt the second target digital string according to the preset key to obtain a second target character string;

[0033] Determine, according to the second target character string, the first target character string, the ASCII character corresponding to the payment amount, and the ASCII character corresponding to the payment time;

[0034] The first target digital string is decrypted using a preset key to determine the current vehicle information, the payment amount is determined according to the ASCII characters corresponding to the payment amount, and the payment time is determined according to the ASCII characters corresponding to the payment time.

[0035] According to the method for vehicle exiting a parking lot in an off-network state provided by the present invention, the verification of the current vehicle information, the payment amount and the payment time includes:

[0036] When it is determined that the current license plate number obtained by decrypting the second target digital string is the same as the current license plate number obtained by using the license plate recognition device, verifying the device number;

[0037] If it is determined that the device number obtained by decrypting the second target digital string is the same as the device number corresponding to the control terminal at the exit of the parking lot, the payment amount is verified;

[0038] If it is determined that the payment amount is the same as the payment amount displayed on the display screen at the exit of the parking lot, verifying the payment time;

[0039] When it is determined that the payment time meets the preset release rules, it is determined that the verification is passed.

[0040] According to the method for vehicle exiting a parking lot in an off-network state provided by the present invention, the current vehicle information also includes coordinate parameter values ​​corresponding to a vehicle entry photo, the vehicle entry photo is obtained according to the license plate recognition device, and the coordinate parameter values ​​are coordinate values ​​of any point displayed in a preset image software;

[0041] After determining that the payment time satisfies the preset release rule, the method further includes:

[0042] When it is determined that the coordinate parameter value obtained by decrypting the second target digital string is the same as the coordinate parameter value corresponding to the vehicle approaching photo, it is determined that the verification is passed.

[0043] In a third aspect, a system for exiting a vehicle from a parking lot when the network is disconnected is provided, which utilizes the method for exiting a vehicle from a parking lot when the network is disconnected, and includes a control terminal and an intelligent terminal at the exit side of the parking lot;

[0044] The control end comprises a control unit, a license plate recognition device, a display screen, a lifting rod and a receiving device, and the control unit is communicatively connected with the license plate recognition device, the display screen, the lifting rod and the receiving device.

[0045] The present invention provides a method and system for vehicle exit in a parking lot disconnected from the Internet. When it is determined that the parking lot is disconnected from the Internet, the first target digital string is displayed on the display screen on the exit side of the parking lot, and the vehicle information and the current vehicle location information are verified according to the first target digital string. After the payment is completed, the second target digital string is used to verify the control terminal, and the paid vehicle is released after confirming that the release conditions are met. The present invention can provide an emergency solution for the control terminal on the exit side of the unmanned parking lot in the scenario where the control terminal loses Internet connection with the cloud platform, so that the car owner can continue to query and pay on the cloud platform, and the paid information is encrypted and transmitted to the control terminal on the exit side of the parking lot by voice, thereby realizing automatic exit release. The present invention reduces the problem of online payment users being unable to exit due to network disconnection of the equipment system, reduces the probability of congestion at the parking lot exit, saves the emergency manpower cost of the parking lot operator, and reduces the business loss caused by free release. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0047] Figure 1 This is one of the flow diagrams of the method for vehicles to exit a parking lot in a disconnected state provided by the present invention;

[0048] Figure 2 This is the second flow chart of the method for vehicles to exit a parking lot when the network is disconnected provided by the present invention;

[0049] Figure 3 This is a third flow chart of a method for vehicles to exit a parking lot when the network is disconnected provided by the present invention;

[0050] Figure 4 It is a structural schematic diagram of a vehicle exit system in a parking lot disconnected from the Internet provided by the present invention. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] In order to solve the above technical problems, Figure 1 This is one of the flow diagrams of the method for vehicle exiting a parking lot in a disconnected state provided by the present invention. The method for vehicle exiting a parking lot in a disconnected state is applied to the smart terminal side, and the execution subject is the smart terminal, including:

[0053] Step 101: Identify the payment QR code at the exit of the parking lot. When it is determined that the parking lot is disconnected from the Internet, call a preset display box corresponding to the payment QR code to receive a first input from the user. The first input includes a first target digital string and a target license plate number obtained from the display screen at the exit of the parking lot.

[0054] Step 102: In response to the first input, decrypt the first target digital string to obtain current vehicle information, wherein the current vehicle information includes current identification time, device number, and current license plate number;

[0055] Step 103: if it is determined that the target license plate number is the same as the current license plate number, receiving a second input from the user in the preset display box, wherein the second input includes a payment amount obtained from a display screen at the exit of the parking lot;

[0056] Step 104: In response to the second input, encrypt the current vehicle information, payment amount and payment time, generate a second target digital string, and instruct the receiving device at the parking lot exit to receive the second target digital string.

[0057] In step 101, the payment QR code on the parking lot exit side can be displayed on the display screen on the parking lot exit side, or it can be a drawing posted on the parking lot exit side. After identifying the payment QR code on the parking lot exit side, you can open the payment website to display the preset display box, or you can jump to the mini program to display the preset display box, or you can display the preset display box in the official account according to the instructions.

[0058] Optionally, the present invention will continuously detect whether the control terminal on the parking lot exit side is in an offline state. Once it is determined that the control terminal on the parking lot exit side is in an offline state, the preset display box of the mobile terminal in the offline state is started to obtain a first target digital string displayed on the display screen on the parking lot exit side. In addition to entering the first target digital string in the preset display box of the mobile terminal, the user will also enter the target license plate number of the vehicle about to exit, which is used to verify whether the license plate number obtained by the recognition operation of the control terminal on the current parking lot exit side is the same as the license plate number of the vehicle about to exit.

[0059] In step 102, the present invention responds to the first input, decrypts the first target digital string, and obtains current vehicle information, wherein the current vehicle information includes a current identification time, a device number, and a current license plate number, including: decrypting the first target digital string using a preset key to obtain a first target character string; determining a UNIX timestamp, an ASCII character corresponding to the device number, and an ASCII character corresponding to the current license plate number based on the first target character string; determining the current identification time based on the UNIX timestamp, determining the device number based on the ASCII character corresponding to the device number, and determining the current license plate number based on the ASCII character corresponding to the current license plate number.

[0060] Optionally, the present invention can use a symmetric encryption algorithm (AES) to implement data encryption and decryption. In this case, the present invention sets preset keys on the control terminals on the smart terminal side and the parking lot exit side for encryption and decryption, and then uses the preset keys to decrypt the first target digital string to obtain a first target character string. In the first target character string, the UNIX timestamp, the ASCII characters corresponding to the device number, and the ASCII characters corresponding to the current license plate number can be distinguished by separators. In the present invention, the current recognition time is converted into a UNIX timestamp, that is, the number of seconds from "January 1, 1970 00:00:00" to the current recognition time is determined, and the UNIX timestamp is determined based on the number of seconds. In the restoration process, the current recognition time is determined based on the number of seconds corresponding to the UNIX timestamp and "January 1, 1970 00:00:00". In other embodiments, "January 1, 1970 00:00:00" can also be replaced by other more recent times, such as "November 11, 2023 00:00:00". Furthermore, since the device number and the current license plate number have been converted into ASCII characters at the control end on the exit side of the parking lot, the device number is determined by inverse conversion based on the ASCII characters corresponding to the device number, and the current license plate number is determined by inverse conversion based on the ASCII characters corresponding to the current license plate number.

[0061] In step 103, when it is determined that the target license plate number is the same as the current license plate number, it is considered that the current vehicle has been successfully verified and is waiting at the parking lot exit to be released after payment. At this time, since the vehicle recorded the historical entry time when entering the parking lot, and the current identification time is recorded when it is currently preparing to leave the parking lot, the time difference and the parking lot pre-designed fee rules can be used to determine the payment amount to be paid when the current vehicle leaves the parking lot, and the payment amount is displayed on the display screen at the parking lot exit. After the user sees the payment amount, he enters the payment amount in the preset display box to pay, that is, the second input is generated, and the user's second input is received in the preset display box.

[0062] Step 104, in response to the second input, encrypt the current vehicle information, payment amount and payment time to generate a second target digital string, including: converting the payment amount into ASCII characters corresponding to the payment amount, converting the payment time into ASCII characters corresponding to the payment time; determining a second target character string based on the first target character string, the ASCII characters corresponding to the payment amount and the ASCII characters corresponding to the payment time; encrypting the second target character string based on the preset key to generate a second target digital string.

[0063] Optionally, first, encrypt the current vehicle information, including converting the current identification time into a UNIX timestamp, converting the current license plate number into ASCII characters corresponding to the current license plate number, and converting the device number into ASCII characters corresponding to the device number; generate a first target character string according to the UNIX timestamp, the ASCII characters corresponding to the current license plate number, and the ASCII characters corresponding to the device number; encrypt the first target character string according to a preset key to generate a first target digital string, and then concatenate the first target character string, the ASCII characters corresponding to the payment amount, and the ASCII characters corresponding to the payment time to obtain a second target character string, and then encrypt the second target character string according to the preset key to generate a second target digital string.

[0064] Optionally, after generating the second target digital string, the present invention can transmit the second target digital string to a receiving device indicating the parking lot exit side through audio playback or picture display to instruct the receiving device at the parking lot exit side to receive the second target digital string.

[0065] Optionally, the receiving device includes a sound pickup device or a QR code recognition device;

[0066] In the case where the receiving device is the sound pickup device, after generating the second target digital string, the method further includes: converting the second target digital string into an audio file, and playing the audio file within a preset range of the sound pickup device. At this time, the sound pickup device receives the audio file and converts it into the second target digital string. The preset range is an effective distance at which the sound pickup device can clearly capture the audio file.

[0067] In the case where the receiving device is the QR code recognition device, after generating the second target digital string, the method further includes: converting the second target digital string into a QR code to be recognized, displaying the QR code to be recognized to the QR code recognition device, the QR code recognition device recognizes and converts the QR code to be recognized to obtain the second target digital string, thereby realizing the flow of the second target digital string from the smart terminal side to the control end side at the parking lot exit side.

[0068] The present invention provides a method for vehicles to exit a parking lot when the parking lot is disconnected from the Internet. When it is determined that the parking lot is disconnected from the Internet, the first target digital string is displayed on a display screen at the exit side of the parking lot, and the vehicle information and the current vehicle position information are verified according to the first target digital string. After the payment is completed, the second target digital string is used to verify the control end, and the paid vehicle is released when it is confirmed that the release conditions are met. The present invention can provide an emergency solution for the control end at the exit side of the unmanned parking lot in the scenario where the control end at the exit side of the parking lot loses the Internet connection with the cloud platform, so that the car owner can continue to query and pay on the cloud platform, and transmit the paid information to the control end at the exit side of the parking lot by voice encryption, thereby realizing automatic exit and release. The present invention reduces the problem of online payment users being unable to exit the parking lot due to network disconnection of the equipment system, reduces the probability of congestion at the parking lot exit, saves the emergency manpower cost of the parking lot operator, and reduces the business loss caused by free release.

[0069] Figure 2 This is the second flow chart of the method for vehicle exiting a parking lot in a disconnected state provided by the present invention. The method for vehicle exiting a parking lot in a disconnected state is applied to the control end at the parking lot exit side, and the execution subject is the control end at the parking lot exit side, including:

[0070] Step 201: using a license plate recognition device to obtain a current license plate number, and when it is determined that the parking lot is disconnected from the Internet, generating a first target digital string according to the current license plate number, the current recognition time, and the device number, and displaying the first target digital string on a display screen at the exit side of the parking lot;

[0071] Step 202: determining a payment amount according to the current recognition time and the historical entry time, and displaying the payment amount on a display screen at the exit of the parking lot;

[0072] Step 203: receiving a second target digital string from the smart terminal, decrypting the second target digital string, and obtaining current vehicle information, payment amount, and payment time, wherein the current vehicle information includes current identification time, device number, and current license plate number;

[0073] Step 204: verify the current vehicle information, the payment amount and the payment time, and if it is determined that the verification is passed, generate a release instruction, wherein the release instruction is used to instruct the lifting rod to lift.

[0074] In step 201, when a vehicle approaches a control terminal at an exit side of a parking lot, the present invention uses a license plate recognition device to obtain a current license plate number, and when it is determined that the parking lot is disconnected from the network, generates a first target digital string according to the current license plate number, the current recognition time and the device number, and displays the first target digital string on a display screen at the exit side of the parking lot, including: converting the current recognition time into a UNIX timestamp, converting the current license plate number into an ASCII character corresponding to the current license plate number, and converting the device number into an ASCII character corresponding to the device number; generating a first target character string according to the UNIX timestamp, the ASCII character corresponding to the current license plate number and the ASCII character corresponding to the device number; encrypting the first target character string according to a preset key to generate a first target digital string, so that when the intelligent terminal decrypts the first target digital string, it can use the preset key to decrypt the first target digital string and obtain the first target character string; determining the UNIX timestamp, the ASCII character corresponding to the device number and the ASCII character corresponding to the current license plate number according to the first target character string; determining the current recognition time according to the UNIX timestamp, determining the device number according to the ASCII character corresponding to the device number, and determining the current license plate number according to the ASCII character corresponding to the current license plate number.

[0075] In step 202, the present invention determines the time the vehicle stays in the parking lot based on the current identification time identified when the vehicle is preparing to leave and the historical entry time identified when the vehicle previously entered the parking lot, processes the stay time according to the parking lot's preset charging rules, and then determines the payment amount, which is displayed on a display screen on the exit side of the parking lot, so that the user can clearly see the parking fee to be paid.

[0076] In step 203, the present invention instructs the receiving device on the exit side of the parking lot to receive the second target digital string. After receiving the second target digital string from the smart terminal, the second target digital string is decrypted to obtain the current vehicle information, payment amount and payment time. The current vehicle information includes the current identification time, device number and current license plate number.

[0077] Optionally, the present invention converts the payment amount into the ASCII character corresponding to the payment amount, and converts the payment time into the ASCII character corresponding to the payment time; determines a second target character string according to the first target character string, the ASCII character corresponding to the payment amount, and the ASCII character corresponding to the payment time; encrypts the second target character string according to the preset key to generate a second target digital string, so that when decrypting the second target digital string, the second target digital string is decrypted according to the preset key to obtain the second target character string; determines the first target character string, the ASCII character corresponding to the payment amount, and the ASCII character corresponding to the payment time according to the second target character string; uses the preset key to decrypt the first target digital string to determine the current vehicle information, determines the payment amount according to the ASCII character corresponding to the payment amount, and determines the payment time according to the ASCII character corresponding to the payment time.

[0078] In step 204, the current vehicle information, the payment amount and the payment time are verified. When it is determined that the verification is passed, a release instruction is generated, and the release instruction is used to instruct the lifting bar to lift. The present invention needs to verify the decrypted current vehicle information, the payment amount and the payment time to confirm whether the release conditions are met. When the release conditions are not met, the preset display box of the smart terminal is used to promptly inform the reason for the failure to release, so that the user can deal with it in time. When it is determined that the verification is passed, a release instruction is generated, and then the lifting bar is driven to lift, so that the vehicle can pass through the gate smoothly.

[0079] The present invention provides a method for vehicles to exit a parking lot when the parking lot is disconnected from the Internet. When it is determined that the parking lot is disconnected from the Internet, the first target digital string is displayed on a display screen at the exit side of the parking lot, and the vehicle information and the current vehicle position information are verified according to the first target digital string. After the payment is completed, the second target digital string is used to verify the control end, and the paid vehicle is released when it is confirmed that the release conditions are met. The present invention can provide an emergency solution for the control end at the exit side of the unmanned parking lot in the scenario where the control end at the exit side of the parking lot loses the Internet connection with the cloud platform, so that the car owner can continue to query and pay on the cloud platform, and transmit the paid information to the control end at the exit side of the parking lot by voice encryption, thereby realizing automatic exit and release. The present invention reduces the problem of online payment users being unable to exit the parking lot due to network disconnection of the equipment system, reduces the probability of congestion at the parking lot exit, saves the emergency manpower cost of the parking lot operator, and reduces the business loss caused by free release.

[0080] Figure 3This is a flow chart of the third method for exiting a vehicle from a parking lot in a disconnected state provided by the present invention. The verification of the current vehicle information, the payment amount and the payment time includes:

[0081] Step 301: When it is determined that the current license plate number obtained by decrypting the second target digital string is the same as the current license plate number obtained by using the license plate recognition device, verify the device number;

[0082] Step 302: if it is determined that the device number obtained by decrypting the second target digital string is the same as the device number corresponding to the control terminal at the parking lot exit side, verify the payment amount;

[0083] Step 303: If it is determined that the payment amount is the same as the payment amount displayed on the display screen at the exit of the parking lot, verify the payment time;

[0084] Step 304: When it is determined that the payment time meets the preset release rules, determine that the verification is passed.

[0085] In step 301, since the second target digital string is generated on the smart terminal side, the source of the current license plate number obtained by the second target digital string is the smart terminal, and the direct source of the current license plate number obtained by the license plate recognition device is the control end on the parking lot exit side. In order to ensure the security and effectiveness of data flow between the smart terminal side and the control end on the parking lot exit side, it is determined whether the current license plate number obtained by the second target digital string is the same as the current license plate number obtained by the license plate recognition device. If they are not the same, it means that there is a problem with the data flow and the verification process is terminated. If they are the same, the verification work of the next stage is continued.

[0086] In step 302, since there may be multiple entrances and exits in the parking lot, each entrance and exit performs payment, verification and release separately when executing vehicle release. Therefore, in order to distinguish different vehicle exits, each parking lot exit is numbered and set as a device number. Similarly, since the second target digital string is generated on the smart terminal side, the source of the device number obtained by the second target digital string is the smart terminal, and the device number corresponding to the control end on the parking lot exit side is inherent in the control end. In order to ensure the security and effectiveness of the data flow between the smart terminal side and the control end on the parking lot exit side, it is determined whether the device number obtained by the second target digital string is the same as the device number corresponding to the control end on the parking lot exit side. If they are not the same, it means that there is a problem with the data flow. It is possible that the current vehicle to be released is not at the parking lot exit when the vehicle identification is performed at the beginning. At this time, the verification process is terminated. If they are the same, the verification work of the next stage is continued.

[0087] In step 303, after verifying the current license plate number and equipment number, the payment amount is verified again. Since the user may pay too much or too little due to misoperation, it is necessary to compare the paid amount with the actual amount to be paid. If the payment amount is different from the payment amount displayed on the display screen at the exit of the parking lot, the parking lot manager can be notified to check the refund or supplementary payment. If it is determined that the payment amount is the same as the payment amount displayed on the display screen at the exit of the parking lot, the next stage of verification will be continued.

[0088] In step 304, due to the temporary matters or malicious intentions of users during the vehicle management process of the parking lot, they do not leave the parking lot immediately after paying the fee, but continue to stay in the parking lot and leave the parking lot after a long time. At this time, due to the large difference between the payment time and the current exit time, the additional parking fees generated cannot be collected, thereby causing losses to the parking lot operator. Therefore, during the verification process, the payment time needs to be verified. The preset release rule can be that the time difference between the payment time and the exit time should be less than the exit limit time given by the parking lot's preset online advance payment. At this time, it is necessary to determine whether the payment time meets the preset release rule, and if the payment time meets the preset release rule, it is determined that the verification is passed.

[0089] Optionally, the current vehicle information further includes a coordinate parameter value corresponding to a vehicle approaching photo, the vehicle approaching photo is obtained according to the license plate recognition device, and the coordinate parameter value is a coordinate value of any point displayed in a preset image software;

[0090] After determining that the payment time satisfies the preset release rule, the method further includes:

[0091] When it is determined that the coordinate parameter value obtained by decrypting the second target digital string is the same as the coordinate parameter value corresponding to the vehicle approaching photo, it is determined that the verification is passed.

[0092] In such an embodiment, the verification of the current vehicle information, the payment amount and the payment time includes: verifying the device number when it is determined that the current license plate number obtained by decrypting the second target digital string is the same as the current license plate number obtained by using the license plate recognition device; verifying the payment amount when it is determined that the device number obtained by decrypting the second target digital string is the same as the device number corresponding to the control terminal at the parking lot exit side; verifying the payment time when it is determined that the payment amount is the same as the payment amount displayed on the display screen at the parking lot exit side; verifying the coordinate parameter value when it is determined that the payment time meets the preset release rule, and determining that the verification is passed when it is determined that the coordinate parameter value obtained by decrypting the second target digital string is the same as the coordinate parameter value corresponding to the vehicle entry photo. Optionally, since the vehicle entry photo exists in the parking lot system and is not open to third parties, the uniqueness, security and validity of the transmitted encrypted information can be verified by verifying the coordinate parameter value.

[0093] Figure 4 It is a structural schematic diagram of a vehicle exit system in a parking lot disconnected state provided by the present invention, wherein the vehicle exit system in a parking lot disconnected state utilizes the vehicle exit method in a parking lot disconnected state, and includes a control terminal 1 and an intelligent terminal 2 at the exit side of the parking lot;

[0094] The control end 1 includes a control unit 11, a license plate recognition device 12, a display screen 13, a lifting rod 14 and a receiving device 15. The control unit 11 is communicatively connected with the license plate recognition device 12, the display screen 13, the lifting rod 14 and the receiving device 15.

[0095] Optionally, the present invention can install a computer system at the location where the on-site traffic management equipment is installed at the parking lot exit, deploy on-site control terminal software, and use it as the control terminal 1 on the parking lot exit side to connect the on-site management equipment to the computer via a local area network so that the software can control various functions of the equipment. The on-site management equipment includes a control unit 11, a license plate recognition device 12, a display screen 13, a lifting rod 14, and a receiving device 15.

[0096] Optionally, the control terminal 1 at the parking lot exit side monitors the Internet connection status at any time, and once it is determined that the control terminal 1 at the parking lot exit side is in an offline state, the vehicle exit method in the parking lot offline state proposed by the present invention is started.

[0097] Optionally, the display screen 13 can be used to display the payment QR code, current identification time, device number, current license plate number, payment amount and payment time, and can also be used to display the first target digital string. Specifically, when it is determined that the control terminal 1 on the exit side of the parking lot is in an offline state, the current offline state can also be displayed on the display screen 13. After generating the first target digital string, the first target digital string can be displayed in the form of scrolling playback or direct display. When the verification work is completed and the vehicle is about to leave, "Payment completed", "Wish you a safe journey" and other display contents can also be displayed on the display screen 13.

[0098] Optionally, the display screen 13 and the receiving device 15 are arranged on the side of the vehicle exit close to the main driver, especially the receiving device 15, which needs to be set close to the driver and at a height that can accurately receive data. The receiving device 15 can be a sound pickup device and / or a QR code recognition device. The sound pickup device can optionally be a microphone. The sound pickup direction of the microphone is aimed at the main driver side window of the vehicle. The control terminal 1 on the parking lot exit side is equipped with a module with a voice recognition function, which can convert the voice information transmitted by the microphone into text information. The voice recognition function supports standard Mandarin. At this time, the user can not only play the voice information through the smart terminal, but also read the second target digital string aloud to realize data flow.

[0099] Optionally, during the voice recognition process, the microphone can also play relevant voice to prompt the user to wait, such as playing "recognizing voice". If a recognition error occurs during the recognition process, relevant voice can also be played to prompt the user to play the voice or read the voice again, such as playing "Please play the password again", "Please read the number in the mobile phone again", etc.

[0100] Optionally, the present invention can use the lifting rod 14 to implement exit management for vehicles leaving the parking lot, and can also use lifting columns to manage the release of vehicles. This does not affect the implementation of the technical solution of the present invention. All gate control devices used for vehicle release management will fall within the protection scope recorded in the present invention.

[0101] The present invention provides a vehicle exit system in a parking lot disconnected from the Internet. When it is determined that the parking lot is disconnected from the Internet, the first target digital string is displayed on the display screen on the exit side of the parking lot, and the vehicle information and the current vehicle location information are verified according to the first target digital string. After the payment is completed, the control terminal is verified using the second target digital string, and the paid vehicle is released after confirming that the release conditions are met. The present invention can provide an emergency solution for the control terminal on the exit side of the unmanned parking lot in the scenario where the control terminal loses Internet connection with the cloud platform, so that the car owner can continue to query and pay on the cloud platform, and the paid information is encrypted and transmitted to the control terminal on the exit side of the parking lot by voice, thereby realizing automatic exit release. The present invention reduces the problem of online payment users being unable to exit due to network disconnection of the equipment system, reduces the probability of congestion at the parking lot exit, saves the emergency manpower cost of the parking lot operator, and reduces the business loss caused by free release.

[0102] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0103] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0104] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for vehicles to exit a parking lot when the network is disconnected, applied to the control end at the intelligent terminal side and the parking lot exit side, characterized in that: include: Using a license plate recognition device to obtain a current license plate number, and when determining that the parking lot is disconnected from the Internet, generating a first target digital string according to the current license plate number, the current recognition time, and the device number, and displaying the first target digital string on a display screen at the exit side of the parking lot; Determine the payment amount according to the current recognition time and the historical entry time, and display the payment amount on a display screen at the exit of the parking lot; Identify the payment QR code at the exit of the parking lot, and when it is determined that the parking lot is disconnected from the Internet, call a preset display box corresponding to the payment QR code to receive a first input from the user, wherein the first input includes a first target digital string and a target license plate number obtained from the display screen at the exit of the parking lot; In response to the first input, decrypt the first target digital string to obtain current vehicle information, the current vehicle information including current identification time, device number and current license plate number; In the case where it is determined that the target license plate number is the same as the current license plate number, receiving a second input from the user in the preset display box, the second input including a payment amount obtained from a display screen at the exit of the parking lot; In response to the second input, encrypt the current vehicle information, payment amount and payment time to generate a second target digital string, and instruct a receiving device at the parking lot exit to receive the second target digital string; Receiving a second target digital string from the smart terminal, decrypting the second target digital string, and obtaining current vehicle information, payment amount, and payment time, wherein the current vehicle information includes current identification time, device number, and current license plate number; Verifying the current vehicle information, the payment amount and the payment time, and generating a release instruction if the verification is passed, wherein the release instruction is used to instruct the lifting rod to be lifted; The decrypting the first target digital string to obtain current vehicle information includes: Decrypting the first target digital string using a preset key to obtain a first target character string; Determine the UNIX timestamp, the ASCII character corresponding to the device number, and the ASCII character corresponding to the current license plate number according to the first target character string; Determine the current recognition time according to the UNIX timestamp, determine the device number according to the ASCII characters corresponding to the device number, and determine the current license plate number according to the ASCII characters corresponding to the current license plate number; The encrypting the current vehicle information, payment amount and payment time to generate a second target digital string includes: Convert the payment amount into the ASCII characters corresponding to the payment amount, and convert the payment time into the ASCII characters corresponding to the payment time; Determine a second target character string according to the first target character string, the ASCII character corresponding to the payment amount, and the ASCII character corresponding to the payment time; Encrypt the second target character string according to the preset key to generate a second target digital string; The step of generating a first target digital string according to the current license plate number, the current recognition time and the device number includes: Convert the current recognition time into a UNIX timestamp, convert the current license plate number into the ASCII character corresponding to the current license plate number, and convert the device number into the ASCII character corresponding to the device number; Generate a first target character string according to the UNIX timestamp, the ASCII character corresponding to the current license plate number, and the ASCII character corresponding to the device number; Encrypt the first target character string according to a preset key to generate a first target digital string; The verifying of the current vehicle information, the payment amount and the payment time includes: When it is determined that the current license plate number obtained by decrypting the second target digital string is the same as the current license plate number obtained by using the license plate recognition device, verifying the device number; If it is determined that the device number obtained by decrypting the second target digital string is the same as the device number corresponding to the control terminal at the exit of the parking lot, the payment amount is verified; If it is determined that the payment amount is the same as the payment amount displayed on the display screen at the exit of the parking lot, verifying the payment time; If it is determined that the payment time meets the preset release rules, the verification is determined to be passed; The current vehicle information also includes a coordinate parameter value corresponding to a vehicle approaching photo, the vehicle approaching photo is obtained according to the license plate recognition device, and the coordinate parameter value is a coordinate value of any point displayed in the preset image software; After determining that the payment time satisfies the preset release rule, the method further includes: When it is determined that the coordinate parameter value obtained by decrypting the second target digital string is the same as the coordinate parameter value corresponding to the vehicle approaching photo, it is determined that the verification is passed.

2. The method for vehicles to exit a parking lot when the network is disconnected according to claim 1, characterized in that: The receiving device includes a sound pickup device or a QR code recognition device; In the case where the receiving device is the sound pickup device, after generating the second target digital string, the method further includes: converting the second target digital string into an audio file, and playing the audio file within a preset range of the sound pickup device; In the case where the receiving device is the two-dimensional code recognition device, after generating the second target digital string, the method further includes: converting the second target digital string into a two-dimensional code to be recognized, and displaying the two-dimensional code to be recognized to the two-dimensional code recognition device.

3. A system for exiting a vehicle from a parking lot when the network is disconnected, using the method for exiting a vehicle from a parking lot when the network is disconnected as claimed in claim 1 or 2, characterized in that: Including the control terminal and intelligent terminal at the parking lot exit; The control end comprises a control unit, a license plate recognition device, a display screen, a lifting rod and a receiving device, and the control unit is communicatively connected with the license plate recognition device, the display screen, the lifting rod and the receiving device.

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