CN214098436U

CN214098436U - ETC handheld reading and writing equipment

Info

Publication number: CN214098436U
Application number: CN202023119954.4U
Authority: CN
Inventors: 江良; 廖德福; 逄学艳
Original assignee: Tianjin Kcht Information Technology Co ltd
Current assignee: Tianjin Kcht Information Technology Co ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-08-31
Anticipated expiration: 2030-12-22

Abstract

The utility model discloses an ETC handheld reading and writing device, which comprises a wireless adapter and a handheld reader-writer, wherein the wireless adapter comprises a connector, an interface unit, a wireless unit A and a power supply unit A; the connector is connected with the lane computer terminal through the interface unit, the interface unit is also connected with the wireless unit A, and the wireless unit A is connected with the lane computer terminal; the handheld reader-writer comprises a wireless unit B, a control unit, an encryption unit, a radio frequency unit, an antenna unit and a power supply unit B; the wireless unit B communicates with the wireless unit A in the wireless adapter and establishes an encrypted wireless communication link through the encryption unit; the control unit is also connected with the encryption unit and the radio frequency unit respectively. The whole equipment adopts a local wireless communication mode, the response is faster than that of the traditional 3G/4G handheld equipment, the equipment is tightly combined with the existing lane logic, the working state of the existing equipment is not interrupted, and the equipment has the advantages of low cost and high safety.

Description

ETC handheld reading and writing equipment

Technical Field

The utility model relates to a communication equipment technical field specifically is a reading and writing equipment is handed to ETC.

Background

Along with the popularization of ETC, ETC lane is also more and more, some unusual problems can inevitably appear in the actual current in-process, for example the performance of the on-board unit (OBU) of certain car is relatively poor, the car is driven to the condition that the trackside unit (RSU) antenna below the antenna still can not read the OBU. Usually, the vehicle needs to go backwards to read again, if the traffic flow is large at that time, the backing can be more difficult, and the commuting rate is greatly influenced.

The toll station is usually provided with a handheld device capable of performing read-write operation on the OBU, and the handheld device is generally developed based on a Windows or Android operating system, has 4G communication capability, and can perform independent toll collection.

The ETC handheld device is flexible to use, but also has the problem of higher cost, and the general station configuration is less. In addition, the combination degree of the handheld device and the lane is loose, and the handheld device cannot be seamlessly connected into the existing charging logic.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a reading and writing equipment is handed to ETC has low cost, high security, with advantages such as lane existing equipment zonulae occludens to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an ETC handheld read-write device comprises a wireless adapter and a handheld reader, wherein the wireless adapter comprises a connector, an interface unit, a wireless unit A and a power supply unit A; the connector is connected with the lane computer terminal through an interface unit; the interface unit is also connected with the wireless unit A, and the wireless unit A converts the communication interface into a physical communication interface connected with the lane computer terminal through the interface unit;

the handheld reader-writer comprises a wireless unit B, a control unit, an encryption unit, a radio frequency unit, an antenna unit and a power supply unit B; the wireless unit B communicates with the wireless unit A in the wireless adapter and establishes an encrypted wireless communication link through the encryption unit; the control unit is also connected with the encryption unit and the radio frequency unit respectively; the other end of the radio frequency unit is connected with the antenna unit.

Preferably, the power supply unit a is a DCDC switching power supply or an LDO linear regulated power supply, and the power supply unit a provides working power for all units of the wireless adapter.

Preferably, the power supply unit B is a rechargeable lithium battery, and the power supply unit B is connected to each unit in the handheld reader-writer and provides a working power supply for the handheld reader-writer.

Preferably, the antenna unit is connected with the radio frequency unit and used for transmitting and receiving the wireless signal of the DSRC, and the working frequency of the antenna unit is 5.8 GHz.

Preferably, the wireless communication link between the wireless unit B and the wireless unit a is a bluetooth/Zigbee/2.4G custom/433M custom protocol.

Preferably, the encryption unit is an encrypted PSAM card.

Compared with the prior art, the beneficial effects of the utility model are as follows:

according to the ETC handheld read-write equipment, a wireless adapter is connected into a lane computer terminal, and a handheld reader-writer is in a connection standby mode, namely the equipment is started and is paired with the wireless adapter to establish a wireless communication link; the handheld device is aligned with the OBU position of the charged vehicle, and an operation key is pressed; the handheld device starts a charging process according to an ETC lane RSU antenna, and establishes a DSRC link with an OBU; the handheld device obtains authorization and deducts fees through the encryption unit; the handheld device uploads the result to the lane computer terminal through a wireless link, the lane computer terminal confirms the fee deduction logic and returns the fee deduction logic to the handheld device to release the DSRC link, and the lane computer terminal performs normal fee display rod lifting and releasing operation; the whole equipment adopts a local wireless communication mode, the response is faster than that of the traditional 3G/4G handheld equipment, the equipment is tightly combined with the existing lane logic, the working state of the existing equipment is not interrupted, and the equipment has the advantages of low cost and high safety.

Drawings

FIG. 1 is a connection diagram of the internal units of the wireless adapter of the present invention;

FIG. 2 is a connection diagram of the internal units of the handheld reader/writer according to the present invention;

fig. 3 is a schematic view of the operation of the present invention.

In the figure: 1. a wireless adapter; 101. a connector; 102. an interface unit; 103. a wireless unit A; 104. a power supply unit A; 2. a handheld reader; 201. a wireless unit B; 202. a control unit; 203. an encryption unit; 204. a radio frequency unit; 205. an antenna unit; 206. a power supply unit B; 3. lane computer terminal.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present embodiment provides an ETC handheld read-write device, including a wireless adapter 1 and a handheld reader-writer 2, where the wireless adapter 1 includes a connector 101, an interface unit 102, a wireless unit a103 and a power supply unit a 104; the connector 101 is connected to the lane computer terminal 3 through the interface unit 102, and may be a pluggable interface; the interface unit 102 is used for providing interface conversion, the interface unit 102 is further connected with the wireless unit a103, and the wireless unit a103 converts the communication interface into a physical communication interface connected with the lane computer terminal 3 through the interface unit 102.

The handheld reader-writer 2 comprises a wireless unit B201, a control unit 202, an encryption unit 203, a radio frequency unit 204, an antenna unit 205 and a power supply unit B206; the wireless unit B201 communicates with the wireless unit a103 in the wireless adapter 1 and establishes an encrypted wireless communication link through the encryption unit 203; the control unit 202 is connected with the radio frequency unit 204 and is used for acquiring external key triggering and controlling the radio frequency unit 204 to complete a DSRC communication flow; the control unit 202 is further connected to the encryption unit 203 for providing encryption and decryption authentication of the ETC transaction, and the other end of the rf unit 204 is connected to the antenna unit 205.

In the embodiment, the whole ETC handheld read-write equipment is not provided with a screen, supports the charging of a lithium battery, is provided with the encrypted PSAM card, and can be made into a plastic cuboid or other shapes convenient to hold by hands.

In the above embodiment, the power supply unit a104 is a DCDC switching power supply or an LDO linear regulator, and the power supply unit a104 provides operating power for all units of the wireless adapter 1.

In the above embodiment, the power supply unit B206 is a rechargeable lithium battery, and the power supply unit B206 is connected to each unit in the handheld reader/writer 2 and supplies operating power thereto.

In the above embodiment, the antenna unit 205 is connected to the rf unit 204 and is used for transmitting and receiving DSRC wireless signals, and the operating frequency of the antenna unit 205 and the rf unit 204 is 5.8GHz, which meets the DSRC communication protocol requirements.

In the above embodiment, the wireless communication link between the wireless unit B201 and the wireless unit a103 is bluetooth/Zigbee/2.4G custom/433M custom protocol.

In the above embodiment, during actual use, the handheld reader/writer 2 is further provided with an acousto-optic display circuit, one end of the acousto-optic display circuit is connected with the control unit 202, the other end of the acousto-optic display circuit is connected with a buzzer and two customizable LED indicator lamps, the buzzer can be positioned to remind/alarm of successful transaction, and the LED indicator lamps can define different states or alarms according to colors and flashing frequencies.

The working principle is as follows: according to the ETC handheld read-write equipment, a wireless adapter 1 is connected into a lane computer terminal 3, and a handheld reader-writer 2 is in a connection standby mode, namely the equipment is started and is paired with the wireless adapter 1 to establish a wireless communication link; the handheld device is aligned with the OBU position of the charged vehicle, and an operation key is pressed; the handheld device starts a charging process according to an ETC lane RSU antenna, and establishes a DSRC link with an OBU; the handheld device obtains authorization and deducts fees through the encryption unit 203; the handheld device uploads the result to the lane computer terminal 3 through a wireless link, the lane computer terminal 3 confirms the fee deduction logic and returns the fee deduction logic to the handheld device to release the DSRC link, and the lane computer terminal 3 performs normal fee display rod lifting and releasing operation.

In summary, the following steps: this handheld read-write equipment of ETC adopts local wireless communication mode, and is faster than traditional 3G 4G handheld device response, and equipment and current lane logic combine closely, do not interrupt current equipment operating condition, have with low costs the high advantage of security.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a handheld readwrite device of ETC, includes wireless adapter (1) and handheld read write line (2), its characterized in that: the wireless adapter (1) comprises a connector (101), an interface unit (102), a wireless unit A (103) and a power supply unit A (104); the connector (101) is connected with the lane computer terminal (3) through an interface unit (102); the interface unit (102) is also connected with a wireless unit A (103), and the wireless unit A (103) converts a communication interface into a physical communication interface connected with the lane computer terminal (3) through the interface unit (102);

the handheld reader-writer (2) comprises a wireless unit B (201), a control unit (202), an encryption unit (203), a radio frequency unit (204), an antenna unit (205) and a power supply unit B (206); the wireless unit B (201) communicates with the wireless unit A (103) in the wireless adapter (1) and establishes an encrypted wireless communication link through the encryption unit (203); the control unit (202) is also connected with the encryption unit (203) and the radio frequency unit (204) respectively; the other end of the radio frequency unit (204) is connected with an antenna unit (205).

2. The ETC handheld read-write device according to claim 1, wherein: the power supply unit A (104) is a DCDC switching power supply or an LDO linear voltage-stabilized power supply, and the power supply unit A (104) provides working power supply for all units of the wireless adapter (1).

3. The ETC handheld read-write device according to claim 1, wherein: the power supply unit B (206) is a rechargeable lithium battery, and the power supply unit B (206) is connected with all units in the handheld reader-writer (2) and provides working power supply for the handheld reader-writer.

4. The ETC handheld read-write device according to claim 1, wherein: the antenna unit (205) is connected to the radio frequency unit (204) for transmitting and receiving radio signals of DSRC at an operating frequency of 5.8 GHz.

5. The ETC handheld read-write device according to claim 1, wherein: the wireless communication link between the wireless unit B (201) and the wireless unit A (103) is a Bluetooth/Zigbee/2.4G custom/433M custom protocol.

6. The ETC handheld read-write device according to claim 1, wherein: the encryption unit (203) is an encrypted PSAM card.