Testing equipment and testing method for composite pass card production

Abstract

The present invention discloses a detection device and a detection method for composite pass card production. The device comprises: a bracket, which is used to set the composite pass card to be tested; a power conversion module, a main control module and a download module, wherein the main control module and the download module are powered by the power conversion module; the composite pass card to be tested obtains electric energy from the power conversion module through the bracket; the composite pass card to be tested is connected to the download module through the bracket; the download module installs the obtained composite pass card program and / or MAC address on the composite pass card to be tested, so that the composite pass card to be tested is initialized, wherein the main control module obtains the composite pass card program and / or MAC address from the test host. The device and the detection method are suitable for batch detection of CPC cards during the production process, and can detect the test items required by the specification in one stop, which is simple, time-saving and accurate.

Description

Technical Field

[0001] The invention belongs to the technical field of electronic toll collection in intelligent transportation systems, and in particular relates to a detection device and a detection method for CPC card production. Background Art

[0002] The highway network toll collection and polyphonic path recognition system is mainly composed of electronic road signs, composite readers and writers, and composite pass cards. Among them, the composite pass card (CPC) is the most critical device in the polyphonic path recognition system, which has the functions of receiving and recording toll data and receiving and recording polyphonic path data.

[0003] The composite pass card can not only identify the information of vehicles entering and exiting the toll station, but also accurately record the actual driving path of the vehicle, which can provide an important basis for inter-provincial toll billing and settlement. With the popularization of the ambiguous path recognition system for highway network toll collection, the testing of composite pass cards has become very important.

[0004] At present, in the process of mass production of CPC cards, when doing production testing for CPC cards, different test tools need to be used for each test item, which leads to cumbersome test procedures, complicated test steps, time-consuming and labor-intensive testing. In addition, the test equipment is bulky and not easy to carry. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a testing device and a testing method for CPC card production to solve one or more of the problems in the current CPC card production, such as cumbersome testing procedures, complex testing steps, and time-consuming and labor-intensive testing.

[0006] In a first aspect, the present invention provides a detection device for producing a composite pass card, comprising:

[0007] A bracket, which is used to set the composite pass card to be tested;

[0008] A power conversion module, a main control module and a download module, wherein the main control module and the download module are powered by the power conversion module;

[0009] The composite pass card to be tested obtains electric energy from the power conversion module through the bracket;

[0010] The composite pass card to be tested is communicatively connected with the download module via the bracket;

[0011] The download module installs the acquired composite pass card program and / or MAC address on the composite pass card to be tested, so that the composite pass card to be tested is initialized, wherein the main control module acquires the composite pass card program and / or MAC address from the test host.

[0012] Furthermore, the device further comprises:

[0013] The ADC module is connected to the main control module for communication and is powered by the power conversion module;

[0014] The power conversion module includes a 5V voltage subcircuit, and the composite pass card to be tested obtains power from the 5V voltage subcircuit;

[0015] The ADC module obtains the current value provided by the 5V voltage subcircuit to the composite pass card to be tested;

[0016] During the power consumption test, the main control module controls the ADC module to start collecting current according to the start code in the received sampling instruction, and controls the ADC module to end collecting current according to the stop code in the received sampling instruction, and the ADC module returns the collected current value to the main control module.

[0017] Furthermore, the device further comprises:

[0018] A box body, the inner wall of which is provided with a flexible shielding member;

[0019] Among them, the bracket, power conversion module, main control module and download module are arranged in the box;

[0020] An RF antenna embedded in the wall panel of the box, wherein the operating frequency band of the RF antenna is 5.8 GHz;

[0021] A calibration module, which is in communication connection with the main control module, in communication connection with the RF antenna, and is powered by the power conversion module;

[0022] The main control module controls the calibration module to transmit a predetermined radio frequency signal, and receives a response signal from the composite pass card to be tested through the RF antenna, and calibrates the working parameters of the DSRC module of the composite pass card to be tested based on the response signal and the radio frequency signal, so that the performance of the DSRC module of the composite pass card to be tested meets the specifications.

[0023] Furthermore, the device further comprises:

[0024] Non-connected antenna, its operating frequency band is 13.56MHz;

[0025] The coil is arranged near the contactless antenna and is connected to the composite pass card to be tested arranged on the bracket through a cable to form a contactless communication loop;

[0026] The contactless module is connected to the contactless antenna for communication, connected to the main control module for communication, and powered by the power conversion module;

[0027] During the contactless test, the main control module controls the contactless module to communicate with the contactless communication circuit formed by the composite pass card to be tested, so as to test the contactless reading and writing performance of the composite pass card to be tested.

[0028] Furthermore, the device further comprises:

[0029] RF interface embedded in the wall panel of the box;

[0030] The calibration module is also provided with a radio frequency transceiver port, which is connected to the RF antenna;

[0031] The RF interface is used to connect to the RF transceiver port inside the box;

[0032] The RF interface is used to connect to a spectrum analyzer outside the box.

[0033] Furthermore, the device further comprises:

[0034] USB port embedded in the wall panel of the box;

[0035] The USB interface is used to connect to the main control module inside the box;

[0036] The USB interface is used to connect to a test host outside the box, wherein the test host runs the host computer software;

[0037] The main control module is connected to the test host through a USB channel.

[0038] Furthermore, the device further comprises:

[0039] A switch module, which is in communication connection with the main control module and is powered by the power conversion module;

[0040] During the power consumption test, the main control module controls the switch module to turn off the contactless module, calibration module or download module.

[0041] Further, the bracket includes: a base plate, a support, a lifting plate, a probe connector and a pressure plate;

[0042] The height of the bottom plate in the vertical direction remains fixed;

[0043] The height of the lifting plate is adjustable in the vertical direction;

[0044] The bottom plate is used to fix the composite pass card to be tested;

[0045] The support column is used to fix the base plate and support the lifting plate;

[0046] The lifting plate is located above the bottom plate and can move in the vertical direction along the support column;

[0047] The lifting plate is provided with a probe connector at a position corresponding to the composite pass card to be tested;

[0048] The probe connector is used to connect the coil to the composite pass card to be tested to form a contactless communication loop;

[0049] The probe connector is also used to connect the composite pass card to be tested to the power conversion module to obtain electrical energy;

[0050] The probe connector is also used to connect the composite pass card to be tested with the download module to obtain the composite pass card program and / or MAC address.

[0051] Furthermore, an exposed solder joint is provided on the composite pass card to be tested, for soldering the coil for contactless communication;

[0052] The coil is provided with exposed solder joints for connecting to the composite pass card to be tested which is arranged on the bracket via a cable;

[0053] The composite pass card to be tested is provided with exposed contact points for connecting with the download module and the power conversion module through a probe connector and a cable.

[0054] In a second aspect, the present invention provides a method for producing a composite pass card, using the detection device as described in the first aspect, comprising:

[0055] Place the composite pass card to be tested on the bracket;

[0056] Connect the exposed solder joints of the coil with a cable, and connect the cable to the probe connector of the bracket, so that the coil is connected to the composite pass card to be tested, forming a contactless communication loop;

[0057] placing the probe connector of the bracket against the composite pass card to be tested, so that the composite pass card to be tested is connected to the power conversion module to obtain electrical energy; and

[0058] Connecting the composite pass card to be tested with the download module, so that the download module installs the acquired composite pass card program and / or MAC address on the composite pass card to be tested, so that the composite pass card to be tested is initialized;

[0059] Or the main control module controls the ADC module to collect the current value obtained by the composite pass card to be tested from the power conversion module;

[0060] Or the main control module controls the calibration module to calibrate the working parameters of the DSRC module of the composite pass card to be tested, so that the performance of the DSRC module of the composite pass card to be tested meets the specification;

[0061] Alternatively, the main control module controls the contactless module to communicate with the composite pass card to be tested, so as to test the contactless reading and writing performance of the composite pass card to be tested.

[0062] The detection equipment and detection method for composite pass card production provided by the present invention are integrated with a calibration module, and the dynamic range of the transmitted and received radio frequency signals is wide, and the detection is more accurate; an absorbing sponge is provided, so that the CPC card to be tested is in a simulated microwave darkroom environment surrounded by flexible shielding materials; an embedded system, an embedded chip and a peripheral circuit are adopted, and the integration is high; the detection equipment has few external interfaces; the box size of the detection equipment is small, which not only reduces the volume of the detection equipment, but also reduces the cost of the detection equipment. The box of the detection equipment is provided with a handle, which is easy to carry and convenient to carry to different positions for testing. It integrates most of the detection items required by the specification in an integrated manner, has few detection steps, is easy to operate, and can complete most of the detection work in one stop.

[0063] The detection equipment and method for composite pass card production provided by the present invention are suitable for batch detection of CPC cards during the production process, and can detect the test items required by the specification in a one-stop manner, which is simple, time-saving and accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] A more complete understanding of exemplary embodiments of the present invention may be obtained by referring to the following drawings:

[0065] Figure 1 It is a schematic diagram of the composition of the detection device of the preferred embodiment of the present invention;

[0066] Figure 2 This is a schematic diagram of the composition of the main board of the detection device inside the box according to the preferred embodiment of the present invention;

[0067] Figure 3 A schematic diagram of the components of a support of a detection device according to a preferred embodiment of the present invention;

[0068] Figure 4 It is an external schematic diagram of a detection device according to a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0069] Now, exemplary embodiments of the present invention are described with reference to the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to disclose the present invention in detail and completely and to fully convey the scope of the present invention to those skilled in the art. The terms used in the exemplary embodiments shown in the accompanying drawings are not intended to limit the present invention. In the accompanying drawings, the same units / elements are marked with the same reference numerals.

[0070] Unless otherwise specified, the terms (including technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it is understood that the terms defined in commonly used dictionaries should be understood to have the same meanings as those in the context of the relevant fields, and should not be understood as idealized or overly formal meanings.

[0071] Analog / digital converter or analog / digital converter, also known as Analog-to-Digital Converter, abbreviated as ADC.

[0072] Media Access Control Address, also known as Media Access Control Address, abbreviated as MAC address, also known as Local Area Network Address (LAN Address), is an address used to identify the location of a network device, such as uniquely identifying a network card in the network. If a device has one or more network cards, each network card needs and will have a unique MAC address.

[0073] Dedicated Short Range Communication, also known as Dedicated Short Range Communication, is referred to as DSRC.

[0074] Universal Serial Bus, also known as USB, is an external bus standard used to regulate the connection and communication between computers and external devices.

[0075] Radio Frequency (RF) refers to electromagnetic waves that can be radiated into space, with a frequency range of approximately 300kHz to 300GHz. The microwave frequency band (300M-300G) is a higher frequency band of RF.

[0076] The contactless antenna, also known as the contactless read / write antenna, uses the RFID protocol to achieve 13.56MHz frequency reading and writing.

[0077] Radio Frequency Identification, also known as RFID, is based on the principle of contactless data communication between the reader and the tag to achieve the purpose of identifying the tag (and the target to which it is attached).

[0078] The composite pass card integrates 13.56MHz and 5.8GHz communication functions. It is issued to vehicles at the entrance of closed toll roads and collected at the exit. It supports the reading and writing of entrance, exit information and driving path information in a contactless manner. A composite reader (with a contactless antenna) is set at the entrance and exit of the toll road to read and write the composite pass card at a frequency of 13.56MHz and process transactions. When the composite pass card passes an electronic road sign (i.e., a marking point or marking station) on the road, the composite pass card will receive a 5.8GHz radio frequency signal to accurately record the actual driving path of the vehicle.

[0079] The finished CPC card has a closed shell, which includes: a coil for communicating with a contactless antenna (using a frequency of 13.56 MHz) of a composite reader / writer, a circuit board provided with an embedded chip and its peripheral circuits, and a battery for powering the circuit board, wherein the finished CPC card has an embedded system for CPC cards running in its embedded chip.

[0080] It should be noted that the CPC card cited in the following content refers to a bare CPC card, that is, it only includes a CPC card circuit board, on which an embedded chip and its peripheral circuits are arranged; no battery is installed, and no non-contact coil is welded. In other words, the coil for communicating with the non-contact antenna (using a frequency of 13.56MHz) is not welded on the solder joints on the CPC card circuit board for welding coils. In addition, the embedded chip of the CPC card circuit board has not been initialized, and no CPC card embedded system has been established and run on the embedded chip. In addition, the peripheral circuits of the embedded chip of the CPC card circuit board have not been powered on.

[0081] At present, when CPC cards are mass-produced, the test items for CPC cards include: using a composite reader / writer (using a 13.56MHz frequency) to test the CPC card's reading / writing functions; using a test fixture to test CPC card's basic functions, such as sleep, wake-up, and standby power consumption; using a shielding box to test the RF communication function of the dedicated short-range communication module (using a 5.8GHz frequency). In addition, after testing the CPC card's RF communication function (involving its dedicated short-range communication module and the CPC card's embedded system) in the shielding box, the CPC card is taken out of the shielding box and then other test items are performed, which requires a lot of manpower and test hours.

[0082] A composite pass card production detection device according to an embodiment of the present invention comprises:

[0083] A bracket, which is used to set the composite pass card to be tested;

[0084] A power conversion module, a main control module and a download module, wherein the main control module and the download module are powered by the power conversion module;

[0085] The composite pass card to be tested obtains electric energy from the power conversion module through the bracket;

[0086] The composite pass card to be tested is communicatively connected with the download module via the bracket;

[0087] The download module installs the acquired composite pass card program and / or MAC address on the composite pass card to be tested, so that the composite pass card to be tested is initialized, wherein the main control module acquires the composite pass card program and / or MAC address from the test host.

[0088] Specifically, it also includes: an ADC module, which is communicatively connected with the main control module and powered by the power conversion module;

[0089] The power conversion module includes a 5V voltage subcircuit, and the composite pass card to be tested obtains power from the 5V voltage subcircuit;

[0090] The ADC module obtains the current value provided by the 5V voltage subcircuit to the composite pass card to be tested;

[0091] During the power consumption test, the main control module controls the ADC module to start collecting current according to the start code in the received sampling instruction, and controls the ADC module to end collecting current according to the stop code in the received sampling instruction, and the ADC module returns the collected current value to the main control module.

[0092] Afterwards, the main control module transmits the collected current value or the power consumption value calculated based on the collected current value back to the test host, and displays the current value or the power consumption value corresponding to the current value on the interface of the host computer software of the test host.

[0093] Specifically, it also includes: a box body, the inner wall of which is provided with a flexible shielding member;

[0094] Among them, the bracket, power conversion module, main control module and download module are arranged in the box;

[0095] An RF antenna embedded in the wall panel of the box, wherein the operating frequency band of the RF antenna is 5.8 GHz;

[0096] A calibration module, which is in communication connection with the main control module, in communication connection with the RF antenna, and is powered by the power conversion module;

[0097] The main control module controls the calibration module to transmit a predetermined radio frequency signal, and receives a response signal from the composite pass card to be tested through the RF antenna, and calibrates the working parameters of the DSRC module of the composite pass card to be tested based on the response signal and the radio frequency signal, so that the performance of the DSRC module of the composite pass card to be tested meets the specifications.

[0098] Specifically, it also includes: a non-connected antenna, whose operating frequency band is 13.56 MHz;

[0099] The coil is arranged near the contactless antenna and is connected to the composite pass card to be tested arranged on the bracket through a cable to form a contactless communication loop;

[0100] The contactless module is connected to the contactless antenna for communication, connected to the main control module for communication, and powered by the power conversion module;

[0101] During the contactless test, the main control module controls the contactless module to communicate with the contactless communication circuit formed by the composite pass card to be tested, so as to test the contactless reading and writing performance of the composite pass card to be tested.

[0102] Specifically, it also includes: an RF interface embedded in the wall plate of the box;

[0103] The calibration module is also provided with a radio frequency transceiver port, which is connected to the RF antenna;

[0104] The RF interface is used to connect to the RF transceiver port inside the box;

[0105] The RF interface is used to connect to a spectrum analyzer outside the box.

[0106] Specifically, it also includes: a USB interface embedded in the wall panel of the box;

[0107] The USB interface is used to connect to the main control module inside the box;

[0108] The USB interface is used to connect to a test host outside the box, wherein the test host runs the host computer software;

[0109] The main control module is connected to the test host through a USB channel.

[0110] Specifically, it also includes: a switch module, which is in communication connection with the main control module and is powered by the power conversion module;

[0111] During the power consumption test, the main control module controls the switch module to turn off the contactless module, calibration module or download module.

[0112] Specifically, the bracket includes: a base plate, a support, a lifting plate, a probe connector and a pressing plate;

[0113] The height of the bottom plate in the vertical direction remains fixed;

[0114] The height of the lifting plate is adjustable in the vertical direction;

[0115] The bottom plate is used to fix the composite pass card to be tested;

[0116] The support column is used to fix the base plate and support the lifting plate;

[0117] The lifting plate is located above the bottom plate and can move in the vertical direction along the support column;

[0118] The lifting plate is provided with a probe connector at a position corresponding to the composite pass card to be tested;

[0119] The probe connector is used to connect the coil to the composite pass card to be tested to form a contactless communication loop;

[0120] The probe connector is also used to connect the composite pass card to be tested to the power conversion module to obtain electrical energy;

[0121] The probe connector is also used to connect the composite pass card to be tested with the download module to obtain the composite pass card program and / or MAC address.

[0122] Specifically, the composite pass card to be tested is provided with exposed solder joints for connecting with the coil for contactless communication;

[0123] The coil is provided with exposed solder joints for connecting to the composite pass card to be tested which is arranged on the bracket via a cable;

[0124] The composite pass card to be tested is provided with exposed contact points for connecting with the download module and the power conversion module through a probe connector and a cable.

[0125] After confirming that the performance / functions of the bare CPC card are normal using the composite pass card production testing equipment, the exposed solder joints on the circuit board are welded to the contactless communication coil, and ultrasonic sealing is used to finally produce the finished CPC card.

[0126] A CPC card production detection system according to an embodiment of the present invention comprises a detection device and a test host provided with upper computer software. The test host is connected to the detection device through a USB port to control the detection device to execute the test process and receive the test results returned by the detection device.

[0127] like Figure 1 As shown, the CPC card production detection equipment includes a shielding box, a mainboard, a non-contact antenna and a bracket arranged inside the shielding box, an RF interface, an RF antenna, a USB interface and a power interface embedded in the box body of the shielding box, wherein the bracket is used to set the CPC card to be tested; the operating frequency band of the non-contact antenna is 13.56MHz; the operating frequency band of the RF antenna is 5.8GHz.

[0128] like Figure 2 As shown, the mainboard includes a power input terminal ( Figure 2 Not shown), power conversion module, main control module, calibration module, download module, ADC module, switch module and contactless module.

[0129] When in use, the detection device is introduced into AC mains or other power sources through the power interface on the box (for example, the power interface is connected to the indoor socket through an adapter outside the shielding box).

[0130] After the electric energy is introduced through the power interface on the box, it is connected to the power input terminal on the mainboard through a cable (such as a 12V input power supply), and is converted into multiple voltage levels by the power conversion module, such as a 5V power supply (with a 5V voltage output terminal) and a 3.3V power supply to power other modules of the mainboard and the CPC card to be tested.

[0131] During the test, the exposed contact points on the CPC card to be tested are connected to the probe connector provided on the bracket, and then connected to the 5V voltage output terminal of the power conversion module on the mainboard, and the power conversion module supplies power to the CPC card.

[0132] The USB interface is connected to the test host outside the box, and is connected to the main control module inside the box through a USB cable or a USB interface. The upper computer software uses the USB communication / channel to send instructions to other modules through the main control module inside the shielding box.

[0133] Specifically, when the host computer software sends an instruction, it sends instructions or messages to other modules through the main control module, or sends data or messages from other modules to the host computer software through the main control module. At this time, transparent transmission is used for data transmission between the main control module and the calibration module, and between the main control module and the download module.

[0134] Transparent transmission is transparent transmission. Transparent transmission is generally used to read remote serial port data. During the transmission process, the length and content of the data of the sender and the receiver are exactly the same, and no processing is required on the data. In other words, no matter what the transmitted business is, it is only responsible for transmitting the business to be transmitted to the destination node, which is equivalent to a data line or serial port line, while ensuring the quality of transmission without processing the transmitted business.

[0135] Specifically, the download module is used to download the program and MAC address obtained from the host computer software to the embedded chip (which is provided with a storage unit) of the CPC card to be tested. After the download is successful, the download module returns a download success message to the main control module and stops downloading data from the host computer software.

[0136] The program downloaded to the embedded chip of the CPC card to be tested automatically runs and writes the downloaded MAC address; thereafter, the CPC card to be tested is established with the embedded system and automatically controls the CPC card to be tested to run in a sleep mode.

[0137] Specifically, the main control module is connected to the calibration module and the download module through the serial port; the main control module is connected to the calibration module and the download module through the serial port. 2The C interface is connected to the ADC module; the main control module is connected to the switch module through the IO interface; the main control module is connected to the contactless module through the SPI interface.

[0138] I 2 C interface, also known as Inter-Integrated Circuit, has few pins, simple hardware implementation, strong scalability, and does not require external transceiver equipment such as USART and CAN communication protocols. It is widely used for communication between multiple integrated circuits (ICs) in the system. 2 C requires two signal lines to complete information exchange, namely, SCL clock signal line and SDA data input / output line. It belongs to synchronous communication. Since both input and output data use one line, the communication direction is half-duplex.

[0139] SPI interface, also known as Serial Peripheral Interface, is a synchronous peripheral interface that enables the microcontroller to communicate with various peripheral devices in a serial manner to exchange information.

[0140] The detection device is provided with a three-terminal adapter inside the shielding box. One end of the three-terminal adapter is connected to the RF interface on the box body, and is externally connected to the spectrum analyzer; the other end is connected to the RF transceiver port of the calibration module; and the other end is connected to the RF antenna on the box body. The three-terminal adapter is used to multiplex the RF signal output / input of the calibration module to the external spectrum analyzer and RF antenna. The three-terminal adapter is an externally purchased part and is manufactured using the method disclosed in the prior art.

[0141] Specifically, the RF interface is connected to a spectrum analyzer outside the box to observe the RF parameters during the RF test. While the RF interface is connected to the spectrum analyzer, the spectrum analyzer is connected to the test host through its own USB port. The tester can observe the RF parameters of the CPC card to be tested through the display interface of the host computer software.

[0142] Specifically, the calibration module includes a DSRC module, which is used to establish a DSRC channel with the CPC card to be tested.

[0143] Specifically, the calibration module is also used to adjust the strength, attenuation (adjusted by a numerically controlled attenuator), frequency range, dynamic range (adjusted by a mode switching component), etc. of the radio frequency signal sent to the RF antenna and / or the CPC card to be tested via the radio frequency transceiver port, and receive the response signal responded by the CPC card to be tested through the RF antenna, and calibrate the working parameters of the DSRC module of the CPC card to be tested based on the response signal and the radio frequency signal, so that the performance of the DSRC module of the CPC card to be tested meets the specifications, thereby ensuring the detection accuracy of the CPC card to be tested after it is made into a finished CPC card.

[0144] During the wake-up test, the main control module controls the calibration module to send a 14K square wave to the RF antenna to wake up the CPC card to be tested. After the CPC card to be tested is awakened, it sends response data to the main control module through the probe connector on the bracket or sends response data to the calibration module through the RF antenna. Specifically, the flat cable connected to the probe connector is connected to the main control module on the motherboard through the serial port at one end. At this time, the response data sent by the CPC card to be tested to the main control module is also transmitted in a transparent manner.

[0145] The main control module also controls the calibration module to perform DSRC communication with the CPC card to be tested. The main control module controls the calibration module to send a preset radio frequency signal via the RF antenna; after the DSRC module of the CPC card to be tested receives the radio frequency signal, it returns a response signal.

[0146] Specifically, the probe connector on the bracket is connected to the multi-line cable on the mainboard through a cable and a horn connector. The cables that can be purchased directly include: rainbow cable, gray cable, red and white cable, etc. The terminals at both ends of the cable can use serial ports, parallel ports and other interfaces as appropriate. It should be understood that if one end of the cable is a serial port, the other end should also be a serial port; if one end of the cable is a parallel port, the other end should also be a parallel port.

[0147] Specifically, when designing the connector between the motherboard and the bracket, in order to make the wiring neat and not messy, a pair of horn connectors (an electronic connector) and flat cables are used to lead out various signals. At this time, the spacing between the flat cables is relatively close. In order to reduce the interference between the flat cables and consider the signal return, on the side of the motherboard, the horn socket leads out 14 flat cables from the motherboard and arranges them in the following manner: 6 flat cables are led out as signal cables, 2 flat cables are led out to connect 2 power positive poles (5V and 3.3V) respectively, and 6 flat cables are led out as 6 power grounds respectively, wherein a power ground cable is set between every two signal lines. Specifically, the 6 signal lines led out include: a reset signal line, two download lines, two serial port lines, and a buzzer signal line.

[0148] On the side close to the bracket, the cables connected to the horn socket include the above 6 signal lines, 1 positive power line (5.0V power line for supplying power to the CPC card to be tested) and 1 power ground line. At this time, the probes of the probe connector of the bracket are connected to the cables connected to the horn socket one by one.

[0149] Accordingly, a total of 10 probes are arranged on the bracket. Among these 10 probes, 8 probes connected to the main board and 2 probes are used to connect to the detection coil.

[0150] In specific implementation, the detection coil is fixed on the outer surface of the contactless antenna (this can conveniently and realistically simulate the scene of reading and writing CPC cards at the entrance and exit), such as sticking the coil on the contactless antenna with tape.

[0151] Furthermore, the two solder joints for the subsequent connection of the contactless communication coil are connected to the probe connector on the bracket through two cables. At this time, the detection coil (that is, a contactless communication coil) is an auxiliary device of the detection device. After being connected to each CPC card to be tested through the probe connector on the bracket, the contactless communication function of the CPC card to be tested is activated. At this time, the detection coil contacts the solder joints of the CPC card to be tested through the probe connector and the cable on the bracket.

[0152] Inside the shielding box, the contactless module is connected to the contactless antenna via a flat cable or a cable or wirelessly.

[0153] During the transaction test, the main control module controls the contactless module and communicates with the coil through the contactless antenna controlled by the contactless module, so that the CPC card under test with the contactless communication function activated performs the contactless communication function and is in the entry state; then, the main control module controls the calibration module to perform DSRC communication with the CPC card under test and writes the transaction information; after the transaction is completed, the main control module controls the contactless module and writes the CPC card to the exit state through the contactless antenna controlled by the contactless module.

[0154] It should be noted that when the calibration module writes transaction information to the CPC card to be tested, the steps are similar to those during the wake-up test and will not be repeated here.

[0155] Specifically, the ADC module includes an instrumentation amplifier and an ADC chip. The current obtained by the CPC card under test from the 5V voltage subcircuit of the power conversion module on the mainboard is connected to the instrumentation amplifier, and then connected to the ADC chip through the instrumentation amplifier; the ADC chip converts the collected analog signal into a digital signal and transmits it to the ADC chip through the I 2 The main control module calculates the power consumption value of the CPC card to be tested based on the received current digital quantity and the fixed voltage of 5V, and sends the power consumption value to the host computer software of the test host through the USB channel, and displays it on the display device of the test host.

[0156] Specifically, during the power consumption test, the main control module controls the ADC module to start collecting current according to the start code in the sampling instruction received from the host computer software, and controls the ADC module to stop collecting current according to the stop code in the sampling instruction received from the host computer software. 2The C interface returns the collected current value to the main control module, and transmits it back to the test host via USB communication, and displays its value on the upper computer software interface. Among them, during the power consumption test, the CPC card to be tested is in a dormant state, and the energy consumption obtained from the 5V voltage subcircuit of the power conversion module of the mainboard is minimal. It should be understood that during the power consumption test, the main control module controls the switch module to turn off other modules of the mainboard, such as the contactless module, calibration module and download module, so that the power conversion module no longer supplies power to them.

[0157] The detection system also includes a display component connected to the test host. The display component can be a liquid crystal display or a digital display. The display component is used to display the test status of the composite pass card, for example, the signal frequency of the composite pass card, the activation status of the composite pass card; it can also be used to display the working status of the test host or the current test item, etc.

[0158] In specific implementation, the main control module can be a logic controller or a microprogram controller, such as an STM32 series single-chip microcomputer. The test host can be a PC or a laptop computer LAPTOP.

[0159] like Figure 3 and Figure 4 As shown, the bracket arranged inside the shielding box includes: a base plate, pillars, a lifting plate, a probe connector and a pressure plate; wherein, the base plate is used to fix the CPC card; the pillars (including at least 4) are used to fix the base plate (wherein, the height of the base plate in the vertical direction is fixed) and support the lifting plate (wherein, the height of the lifting plate in the vertical direction is adjustable); the lifting plate is located above the base plate and can move in the vertical direction along the pillars, and the lifting plate is fixedly provided with a probe connector at a position corresponding to the placement point of the CPC card to be tested.

[0160] It should be understood that the lifting plate moves in a vertical direction along the rails or slideways provided on the support.

[0161] When the lifting plate moves downward in the vertical direction a predetermined distance, the exposed contact points of the CPC card to be tested are connected to the mainboard through the probe connector and the flat cable A connected to the probe connector; at this time, the exposed solder points of the CPC card to be tested are also connected to the solder points of the coil through the probe connector and the flat cable B connected to the probe connector.

[0162] In order to realize the lifting plate to move a predetermined distance in the vertical direction, two pressure plates are arranged on the left and right sides of the probe connector on the lifting plate, the upper end of the pressure plate is hingedly arranged on the upper cover of the shielding box, and the lower end of the pressure plate is hingedly arranged on the lifting plate. When the upper cover of the shielding box is closed, the pressure plate is pressed downward against the lifting plate, and the lifting plate is pressed downward in the vertical direction until the probe connector and the exposed solder joints of the CPC card are fully engaged. When the upper cover of the shielding box is opened, the pressure plate is lifted upward, and the lifting plate is lifted upward in the vertical direction, so that the probe connector and the exposed solder joints of the CPC card are disengaged.

[0163] Specifically, a gas pressure rod supporting the upper cover is provided at the connection between the upper cover and the box body, that is, at both ends of the left and right side walls close to the shielding box, so as to prevent the upper cover from falling down and pinching the operator due to the failure of the pre-set limit function after the upper cover is pulled up. That is, when the upper cover of the shielding box is opened, the gas pressure rod extends from the cylinder. When the upper cover of the shielding box is closed, the gas pressure rod retracts into the cylinder.

[0164] Specifically, the shielding box also includes a handle. Considering that the pressure plate is fixedly arranged on the inner side of the upper cover of the shielding box, when the upper cover of the shielding box is closed, the pressure plate can press on both sides of the probe connector and press the lifting plate downward, and the bracket should be fixed inside the shielding box near the handle, so that it is convenient to take the CPC card to be tested from the shielding box.

[0165] Since the effective communication range of dedicated short-range communication is usually 30m, the DSRC channels of multiple CPC cards are prone to mutual interference during the test. Since it is difficult to locate or distinguish the DSRC channels of multiple CPC cards, other CPC cards that are not the current detection objects may be mistakenly awakened, resulting in inaccurate test results for the CPC card of the current detection object.

[0166] To address this technical problem, the detection equipment adheres the flexible shielding member to the inner wall of the shielding box shell, thereby reducing mutual interference between DSRC channels and preventing other CPC cards to be tested outside the shielding box from being woken up by mistake.

[0167] The flexible shielding member may be shielding cotton, such as conductive foam or conductive sponge; it may also be shielding paper, such as tin foil or electroplated metal paper; it may also be an absorbing sponge.

[0168] Preferably, the side wall box body and the upper cover of the shielding box are die-casted from aluminum alloy material to further enhance the shielding effect.

[0169] The composite pass card production detection device and detection system of the embodiment of the present invention have the following characteristics:

[0170] 1) The mainboard is integrated with a calibration module; the dynamic range of the radio frequency signal transmitted and received by the calibration module is wide, and the detection is more accurate. Compared with the 13.56kHz composite reader, the calibration module not only reduces the size of the detection equipment, but also reduces the cost of the detection equipment.

[0171] 2) Spread absorbing sponge inside the testing equipment to place the CPC card to be tested in a simulated microwave darkroom environment surrounded by flexible shielding materials;

[0172] 3) The testing equipment has few external interfaces. It uses embedded systems, embedded chips and peripheral circuits with high integration. The testing equipment has a small box size and can be easily placed on the test bench. The testing equipment box is equipped with a handle, which is easy to carry and convenient for carrying to different locations for testing.

[0173] 4) The testing equipment integrates most of the testing items required by the specifications, with fewer testing steps and easy operation; most testing work can be completed in one stop.

[0174] The composite pass card production detection method of the embodiment of the present invention uses the aforementioned detection device, including:

[0175] Place the composite pass card to be tested on the bracket;

[0176] Connect the exposed solder joints of the coil with a cable, and connect the cable to the probe connector of the bracket, so that the coil is connected to the composite pass card to be tested, forming a contactless communication loop;

[0177] placing the probe connector of the bracket against the composite pass card to be tested, so that the composite pass card to be tested is connected to the power conversion module to obtain electrical energy; and

[0178] Connecting the composite pass card to be tested with the download module, so that the download module installs the acquired composite pass card program and / or MAC address on the composite pass card to be tested, so that the composite pass card to be tested is initialized;

[0179] Or the main control module controls the ADC module to collect the current value obtained by the composite pass card to be tested from the power conversion module;

[0180] Or the main control module controls the calibration module to calibrate the working parameters of the DSRC module of the composite pass card to be tested, so that the performance of the DSRC module of the composite pass card to be tested meets the specification;

[0181] Alternatively, the main control module controls the contactless module to communicate with the composite pass card to be tested, so as to test the contactless reading and writing performance of the composite pass card to be tested.

[0182] The composite pass card production detection method is to put the CPC card without welding coils into the bracket in the shielding box of the detection equipment; after downloading the program and MAC address to the CPC card to be tested, click the test item button of the host computer software to do the corresponding test, which is simple and time-saving; use the host computer software to control the detection process; measure power consumption, test wake-up function and transaction function; and read the frequency and other RF parameters by connecting the test host to the spectrum analyzer. Each module in the detection equipment is a minimum system module with a single function, which reduces the cost of the equipment.

[0183] In summary, the detection equipment, detection method and detection system for the production of composite pass cards are integrated with a calibration module and are laid with absorbing sponges, so that the detection accuracy is high; the equipment has few external interfaces, and the upper computer software integrates multiple test items, which is easy to operate and greatly reduces labor costs.

[0184] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0185] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0186] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0187] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0188] The invention has been described above with reference to a few embodiments. However, it is known to a person skilled in the art that other embodiments than the ones disclosed above are equally within the scope of the invention, as defined by the appended patent claims.

[0189] Generally, all terms used in the claims are to be interpreted according to their ordinary meaning in the technical field, unless explicitly defined otherwise herein. All references to "a / / the [means, component, etc.]" are to be openly interpreted as at least one instance of a means, component, etc., unless explicitly stated otherwise. The steps of any method disclosed herein do not necessarily have to be performed in the exact order disclosed, unless explicitly stated otherwise.

Claims

1. A testing device for composite pass card production, characterized in that: include: A bracket, which is used to set the composite pass card to be tested; A power conversion module, a main control module and a download module, wherein the main control module and the download module are powered by the power conversion module; The composite pass card to be tested obtains electric energy from the power conversion module through the bracket; The composite pass card to be tested is communicatively connected with the download module via the bracket; The download module installs the acquired composite pass card program and / or MAC address on the composite pass card to be tested, so that the composite pass card to be tested is initialized, wherein the main control module acquires the composite pass card program and / or MAC address from the test host; Non-connected antenna, its operating frequency band is 13.56MHz; The coil is arranged near the contactless antenna and is connected to the composite pass card to be tested arranged on the bracket through a cable to form a contactless communication loop; The contactless module is connected to the contactless antenna for communication, connected to the main control module for communication, and powered by the power conversion module; During the contactless test, the main control module controls the contactless module to communicate with the contactless communication circuit formed by the composite pass card to be tested, so as to test the contactless reading and writing performance of the composite pass card to be tested.

2. The device according to claim 1, characterized in that Also includes: The ADC module is connected to the main control module for communication and is powered by the power conversion module; The power conversion module includes a 5V voltage subcircuit, and the composite pass card to be tested obtains power from the 5V voltage subcircuit; The ADC module obtains the current value provided by the 5V voltage subcircuit to the composite pass card to be tested; During the power consumption test, the main control module controls the ADC module to start collecting current according to the start code in the received sampling instruction, and controls the ADC module to end collecting current according to the stop code in the received sampling instruction, and the ADC module returns the collected current value to the main control module.

3. The device according to claim 1, characterized in that Also includes: A box body, the inner wall of which is provided with a flexible shielding member; Among them, the bracket, power conversion module, main control module and download module are arranged in the box; An RF antenna embedded in the wall panel of the box, wherein the operating frequency band of the RF antenna is 5.8 GHz; A calibration module, which is in communication connection with the main control module, in communication connection with the RF antenna, and is powered by the power conversion module; The main control module controls the calibration module to transmit a predetermined radio frequency signal, and receives a response signal from the composite pass card to be tested through the RF antenna, and calibrates the working parameters of the DSRC module of the composite pass card to be tested based on the response signal and the radio frequency signal, so that the performance of the DSRC module of the composite pass card to be tested meets the specifications.

4. The device according to claim 3, characterized in that Also includes: RF interface embedded in the wall panel of the box; The calibration module is also provided with a radio frequency transceiver port, which is connected to the RF antenna; The RF interface is used to connect to the RF transceiver port inside the box; The RF interface is used to connect to a spectrum analyzer outside the box.

5. The device according to claim 3, characterized in that Also includes: USB port embedded in the wall panel of the box; The USB interface is used to connect to the main control module inside the box; The USB interface is used to connect to a test host outside the box, wherein the test host runs the host computer software; The main control module is connected to the test host through a USB channel.

6. The device according to any one of claims 1 to 3, characterized in that Also includes: A switch module, which is in communication connection with the main control module and is powered by the power conversion module; During the power consumption test, the main control module controls the switch module to turn off the contactless module, calibration module or download module.

7. The device according to claim 1, characterized in that The bracket includes: a base plate, a support column, a lifting plate, a probe connector and a pressing plate; The height of the bottom plate in the vertical direction remains fixed; The height of the lifting plate is adjustable in the vertical direction; The bottom plate is used to fix the composite pass card to be tested; The support column is used to fix the base plate and support the lifting plate; The lifting plate is located above the bottom plate and can move in the vertical direction along the support column; The lifting plate is provided with a probe connector at a position corresponding to the composite pass card to be tested; The probe connector is used to connect the coil to the composite pass card to be tested to form a contactless communication loop; The probe connector is also used to connect the composite pass card to be tested to the power conversion module to obtain electrical energy; The probe connector is also used to connect the composite pass card to be tested with the download module to obtain the composite pass card program and / or MAC address.

8. The device according to claim 1, characterized in that An exposed soldering point is provided on the composite pass card to be tested, for soldering the coil for contactless communication; The coil is provided with exposed solder joints for connecting to the composite pass card to be tested which is arranged on the bracket via a cable; The composite pass card to be tested is provided with exposed contact points for connecting with the download module and the power conversion module through a probe connector and a cable.

9. A detection method for composite pass card production, characterized in that: Use of the detection device according to any one of claims 1 to 8, comprising: Place the composite pass card to be tested on the bracket; Connect the exposed solder joints of the coil with a cable, and connect the cable to the probe connector of the bracket, so that the coil is connected to the composite pass card to be tested, forming a contactless communication loop; placing the probe connector of the bracket against the composite pass card to be tested, so that the composite pass card to be tested is connected to the power conversion module to obtain electrical energy; and Connecting the composite pass card to be tested with the download module, so that the download module installs the acquired composite pass card program and / or MAC address on the composite pass card to be tested, so that the composite pass card to be tested is initialized; Or during power consumption test, the main control module controls the ADC module to collect the current value obtained by the composite pass card to be tested from the power conversion module; Or the main control module controls the calibration module to calibrate the working parameters of the DSRC module of the composite pass card to be tested, so that the performance of the DSRC module of the composite pass card to be tested meets the specification; Or during the contactless test, the main control module controls the contactless module to communicate with the composite pass card to be tested, so as to test the contactless reading and writing performance of the composite pass card to be tested.

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