A device for verifying CIR device line data

Abstract

The utility model provides a kind of equipment for verifying CIR equipment line data, the equipment includes: satellite signal self-checking circuit, the satellite signal receiving chip U11 of satellite signal self-checking circuit at least has the connection of capacitor C1 and antenna ANT1 to 11 pin;Communication conversion circuit, the communication conversion circuit at least includes: first signal conversion circuit and second signal conversion circuit, wherein, the first signal conversion circuit is connected with the second signal conversion circuit;Satellite signal self-checking circuit is connected with the communication conversion circuit by radio frequency signal generator and mainboard, the equipment involved in the utility model improves the verification efficiency in the application scene of verifying multiple CIR equipment line data under the premise of guaranteeing to support the generation of GPS analog signal and BDS analog signal.

Description

Technical Field

[0001] This utility model relates to a device for verifying CIR equipment line data, and the technical field it relates to is the field of locomotive integrated wireless communication equipment technology. Background Technology

[0002] In the field of railway communications, the Car-Mounted Integrated Radio Communication (CIR) system has always held a pivotal position. As an advanced integrated onboard communication device that combines voice, data, and other service functions, CIR not only meets the diverse and complex needs of railway traffic communication but also serves as a crucial guarantee for train safety and punctuality. Through its efficient communication mechanism, CIR equipment ensures unimpeded information flow between the locomotive and the dispatching console, providing reliable communication support for railway dispatching.

[0003] CIR line data simulation and verification equipment is crucial in CIR equipment applications. With the construction of new lines and the upgrading of existing lines, the operating line data of CIR equipment needs frequent additions and modifications. To ensure the accuracy and effectiveness of the CIR equipment's operating line data, thorough simulation tests and on-vehicle verification are required before the line data is batch-loaded into the CIR equipment. Furthermore, CIR line data simulation and verification equipment can simulate and automatically verify line data from multiple CIR equipment manufacturers, significantly reducing the complexity, cycle time, and workload of verification.

[0004] In existing technologies, the CIR line simulation verification equipment requires multiple CIR line simulation verification devices to verify the equipment in application scenarios that verify line data from multiple CIR devices. Furthermore, it lacks a signal self-testing circuit to verify the correctness of the generated satellite positioning signal. For example, the locomotive integrated wireless communication equipment geographic information system data verification device (application number CN202020119864.6) disclosed on the China Patent Network does not have the function of verifying line data from multiple CIR devices. This results in low efficiency in testing and verification in application scenarios requiring the verification of multiple CIR device line data. Moreover, the system in this patent does not verify the generated satellite positioning signal, making it impossible to promptly identify problems during the line data testing and verification process in CIR device line data verification applications. Utility Model Content

[0005] The purpose of this invention is to provide a verification device for CIR line data, which solves the problem in the prior art that a single device cannot verify the line data of multiple CIR devices.

[0006] Another objective of this invention is to provide a verification device for CIR line data, thereby solving the problem in the prior art that the generated satellite positioning signals cannot be verified.

[0007] To achieve the above objectives, this utility model provides a CIR line data verification device. 1. The device includes at least: a satellite signal self-test circuit, wherein pin 11 of the satellite signal receiving chip U11 of the satellite signal self-test circuit is connected to at least a capacitor C1 and an antenna ANT1; a communication conversion circuit, wherein the communication conversion circuit includes at least: a first signal conversion circuit and a second signal conversion circuit, wherein the first signal conversion circuit and the second signal conversion circuit are connected; the satellite signal self-test circuit is connected to the communication conversion circuit through an RF signal generator and a motherboard.

[0008] Preferably, 2. the connection method of the satellite self-test circuit includes: pin 11 of the satellite signal receiving chip U11 is connected to the first end of the capacitor C1, and the second end of the capacitor C1 is connected to pin 1 of the antenna ANT1.

[0009] Preferably, the connection method of the satellite signal self-test circuit includes: pin 22 of the satellite signal receiving chip U11 is connected to pin 1 of the polarization capacitor CE1 and the second end of the resistor R1, the first end of the resistor R1 is connected to pin 2 of the diode D16, and pin 2 of the polarization capacitor CE1 is grounded.

[0010] Preferably, the connection method of the satellite signal self-test circuit includes: the 20 pin of the satellite signal receiving chip U11 is connected to the second end of the resistor R4 and the S end of the MOS transistor Q5; the 20 pin of the satellite signal receiving chip U11 is connected to the second end of the resistor R92 and the S end of the MOS transistor Q4.

[0011] Preferably, the connection method of the satellite signal self-test circuit includes: the second end of the resistor R4 is connected to the source (S) end of the MOSFET Q5, and the drain (D) end of the MOSFET Q5 is connected to the second end of the resistor R5; the second end of the resistor R92 is connected to the source (S) end of the MOSFET Q4, and the drain (D) end of the MOSFET Q4 is connected to the second end of the resistor R91.

[0012] Preferably, the connection method of the communication conversion circuit includes: pins 10 and 9 of the 232 to TTL chip U1 of the first signal conversion circuit are connected to pins 2 and 3 of the TTL to 422 chip U5 of the second signal conversion circuit, respectively.

[0013] Preferably, the connection method of the communication conversion circuit includes: pins 10 and 9 of the 232 to TTL chip U2 of the first signal conversion circuit are connected to pins 2 and 3 of the TTL to 422 chip U7 of the second signal conversion circuit, respectively.

[0014] Preferably, the radio frequency signal generator includes at least: a simulator, an attenuator, and an 8-to-1 power divider, wherein the simulator is connected to the attenuator, the attenuator is connected to the 8-to-1 power divider, the 8-to-1 power divider is connected to the satellite signal self-test circuit, and the simulator includes at least a GPS simulator and a BDS simulator.

[0015] Preferably, the motherboard is connected to the communication conversion circuit.

[0016] Preferably, the motherboard is connected to the human-computer interaction module.

[0017] The beneficial effects of this utility model are that, through the communication conversion circuit, the original RS232 communication is converted into RS422 communication, enabling the device involved in this utility model to verify the line data of multiple CIR devices simultaneously, thereby improving the testing and verification efficiency in application scenarios where CIR device line data is verified; through the satellite signal self-test circuit, the device involved in this utility model can detect device faults in a timely manner through the generated positioning signal. Attached Figure Description

[0018] Figure 1 This is a circuit diagram of the satellite signal self-test circuit involved in this utility model.

[0019] Figure 2 This is a circuit diagram of the communication conversion involved in this utility model.

[0020] Figure 3 This is a circuit diagram of the communication conversion involved in this utility model.

[0021] Figure 4 This is a frame diagram of the equipment involved in this utility model. Detailed Implementation

[0022] Example 1: This example discloses the circuit connection method of the device involved in this utility model. See details below. Figures 1 to 3 .

[0023] The device of this utility model mainly includes the circuit described below.

[0024] In the satellite signal self-test circuit, pin 11 of the satellite positioning signal receiving chip U11 is connected to the first end of capacitor C1, the second end of capacitor C1 is connected to the second end of inductor L26, and the second end of capacitor C1 is connected to pin 1 of antenna ANT1.

[0025] Pin 23 of satellite positioning signal receiver chip U11 is connected to the first end of capacitor C88. Pin 23 of satellite positioning signal receiver chip U11 is connected to the first end of capacitor C87. Pin 24 of satellite positioning signal receiver chip U11 is connected to the second end of capacitor C88. Pin 24 of satellite positioning signal receiver chip U11 is connected to the second end of capacitor C87. The second ends of capacitor C87, capacitor C88, and pin 24 of satellite positioning signal receiver chip U11 are all grounded.

[0026] Pin 22 of the satellite positioning signal receiver chip U11 is connected to pin 1 of the polarization capacitor CE1. Pin 22 of the satellite positioning signal receiver chip U11 is connected to the second end of the resistor R1. The first end of the resistor R1 is connected to pin 2 of the diode D16. Pin 2 of the polarization capacitor is grounded.

[0027] Pin 20 of satellite positioning signal receiver chip U11 is connected to the second terminal of resistor R4. Pin 21 of satellite positioning signal receiver chip U11 is connected to the source (S) terminal of MOSFET Q5. The second terminal of resistor R4 is connected to the source (S) terminal of MOSFET Q5. The first terminal of resistor R4 is connected to the gate (G) terminal of MOSFET Q5. The second terminal of resistor R5 is connected to the drain (D) terminal of MOSFET Q5. Pin 21 of satellite positioning signal receiver chip U11 is connected to the second terminal of resistor R92. Pin 21 of satellite positioning signal receiver chip U11 is connected to the source (S) terminal of MOSFET Q4. The second terminal of resistor R92 is connected to the source (S) terminal of MOSFET Q4. The first terminal of resistor R92 is connected to the gate (G) terminal of MOSFET Q4. The drain (D) terminal of MOSFET Q4 is connected to the second terminal of resistor R91.

[0028] The communication conversion circuit includes a first signal conversion circuit and a second signal conversion circuit, which are connected together. Specifically, pin 10 of the 232-to-TTL chip U1 in the first signal conversion circuit is connected to pin 2 of the TTL-to-422 chip U5 in the second signal conversion circuit; pin 9 of the 232-to-TTL chip U1 in the first signal conversion circuit is connected to pin 3 of the TTL-to-422 chip U5 in the second signal conversion circuit; pin 12 of the 232-to-TTL chip U1 in the first signal conversion circuit is connected to pin 3 of the TTL-to-422 chip U6 in the second signal conversion circuit; and pin 11 of the 232-to-TTL chip U1 in the first signal conversion circuit is connected to pin 2 of the TTL-to-422 chip U6 in the second signal conversion circuit.

[0029] Pin 10 of the 232 to TTL chip U2 in the first signal conversion circuit is connected to pin 2 of the TTL to 422 chip U7 in the second signal conversion circuit. Pin 9 of the 232 to TTL chip U2 in the first signal conversion circuit is connected to pin 3 of the TTL to 422 chip U7 in the second signal conversion circuit. Pin 12 of the 232 to TTL chip U2 in the first signal conversion circuit is connected to pin 3 of the TTL to 422 chip U8 in the second signal conversion circuit. Pin 11 of the 232 to TTL chip U2 in the first signal conversion circuit is connected to pin 2 of the TTL to 422 chip U8 in the second signal conversion circuit.

[0030] Pin 10 of the 232 to TTL chip U3 in the first signal conversion circuit is connected to pin 2 of the TTL to 422 chip U9 in the second signal conversion circuit. Pin 9 of the 232 to TTL chip U3 in the first signal conversion circuit is connected to pin 3 of the TTL to 422 chip U9 in the second signal conversion circuit. Pin 12 of the 232 to TTL chip U3 in the first signal conversion circuit is connected to pin 3 of the TTL to 422 chip U9 in the second signal conversion circuit. Pin 11 of the 232 to TTL chip U3 in the first signal conversion circuit is connected to pin 2 of the TTL to 422 chip U9 in the second signal conversion circuit.

[0031] Pin 1 of the 232-to-TTL chip U1 in the first signal conversion circuit is connected to the second end of capacitor C7, the first end of capacitor C7 is connected to pin 3 of the 232-to-TTL chip U1 in the first signal conversion circuit, and pin 2 of the 232-to-TTL chip U1 in the first signal conversion circuit is connected to the second end of capacitor C10.

[0032] The motherboard is connected to the RF signal generator, the RF signal generator is connected to the satellite signal self-test circuit, and the communication conversion circuit is connected to the motherboard.

[0033] Example 2: This example discloses the specific working process of the equipment involved in this utility model. See details below. Figures 1 to 4 .

[0034] In this embodiment, the working process of the device involved in this utility model is as follows.

[0035] The relevant operators select a specific simulated route through the human-computer interaction module to generate satellite positioning signals. The equipment involved in this embodiment has the functions of generating satellite positioning simulation data, simulating satellite positioning data, automatic data verification, manual data verification, recording, and determining invalid data.

[0036] The motherboard runs CIR line data simulation and verification equipment software, communicating with the simulator and CIR device. The power supply is a FLEX power supply, providing DC12V and DC5V power outputs and power switch control.

[0037] The human-machine interface (HMI) module features a touchscreen design, allowing operators to import GIS data, select simulation routes, set simulation parameters, and display key information and verification results in real time. This facilitates monitoring and adjustment of the simulation process. Selecting a test route via the HMI highlights the chosen route. Setting the start point, end point, running speed, and whether to include tunnel points allows for starting the test. The HMI / display module then receives data to control the BDS / GPS simulator for satellite positioning signal output. The interface provides functions such as pause, run, stop, rewind, decelerate, accelerate, tunnel, and move.

[0038] After operators generate specific commands through the human-machine interface module, the module transmits these commands to the motherboard. The motherboard then generates satellite positioning simulation data based on these commands to simulate satellite positioning. In this simulation function, the motherboard can quickly select a specified route from the simulation route database, simultaneously receive common information from multiple CIRs, and output trajectory data according to the set speed. Furthermore, during CIR route data testing, the device can interact with multiple CIR devices to verify their route data. Specifically, when the motherboard generates positioning test data, it first verifies it through a satellite signal self-test circuit. After successful verification, the generated satellite positioning signal is transmitted to each CIR device. Based on the received satellite positioning signal, the CIR device outputs positioning information. The device transmits the RS232 communication-based data signal to the first signal conversion circuit through a communication conversion circuit. After receiving the RS232 communication-based data signal, the first signal conversion circuit converts the RS232 communication-based data signal into a TTL signal, and then transmits the TTL signal to the second signal conversion circuit. The first conversion circuit converts RS232 communication into TTL communication through a 232 to TTL chip, and the second conversion circuit converts TTL communication into RS422 communication through a TTL to 422 chip.

[0039] The simulator communicates with the motherboard via a network cable and transmits simulated BDS / GPS positioning information via a feeder. The common data interface connects to the common data interface of the CIR device's satellite positioning unit. The antenna interface connects to the antenna interface of the CIR device's satellite positioning unit.

[0040] After receiving the TTL-based signal, the second signal conversion circuit converts the received TTL signal into an RS422-based data signal and transmits it to each CIR device. Upon receiving the RS422-based data signal generated by the CIR device, the CIR device transmits its output satellite positioning common data. The receiving device then compares the satellite positioning common data output by each CIR device with the analog line data corresponding to the satellite positioning signals sent to each CIR device from the database. For a given CIR device, if the difference between the satellite positioning common data generated by the CIR device and the analog line data corresponding to the satellite positioning signals transmitted to the CIR device is consistent or small, then the CIR device's line data is problem-free. If the difference between the satellite positioning common data generated by the CIR device and the analog line data corresponding to the satellite positioning signals transmitted to the CIR device is inconsistent or large, then the CIR device's line data has a problem.

[0041] Before the satellite positioning signal generated by the motherboard is sent, a self-test is required. The transmission of the satellite positioning signal is determined based on the self-test result. After the motherboard selects simulated line data from the database based on the instructions generated by the human-computer interaction module, the simulator generates a GPS simulated signal, a BDS simulated signal, or a mixed signal of GPS and BDS simulated signals based on the simulated line data through a GPS simulator or a BDS simulator. The BDS simulator and GPS simulator are key components for simulating real satellite positioning scenarios. They can generate satellite navigation radio frequency signals that can be received by CIR devices, including GPS, BDS, or dual-mode signals, based on the simulated trajectory and precise positioning data provided by the core computing unit, thereby simulating satellite positioning scenarios in real environments.

[0042] After generating the analog signal, it is transmitted to the attenuator. After processing by the attenuator, the processed analog signal is transmitted to the 1-to-8 power divider. After processing by the 1-to-8 power divider, the processed analog signal is transmitted to the six antenna interfaces and the satellite signal self-test circuit. At this time, the six antenna interfaces are in a blocked state. If the satellite signal self-test circuit determines that the analog signal is consistent with the actual generated satellite positioning signal, or the difference is small, it will cancel the blocked state of the six antenna interfaces and transmit the analog signal to the CIR device. If the satellite signal self-test circuit determines that the analog signal is inconsistent with the actual generated satellite positioning signal, or the difference is large, it will generate a warning signal to remind the relevant operators to check the equipment.

[0043] The motherboard, as the core of the device, is responsible for handling complex computational tasks, including generating satellite positioning simulation data, calculating simulation trajectories, and performing logical judgments for data verification, ensuring the efficiency and accuracy of the simulation verification process. In terms of satellite positioning simulation data generation, the motherboard can import GIS data or separately collected satellite positioning data, automatically correct abnormal data, and generate simulated route trajectories. These trajectories can be saved as a simulated route database based on route names and codes for subsequent simulations. In the satellite positioning data simulation function, the motherboard can quickly select a specified route from the simulated route database for simulation, simultaneously receive common information from multiple CIRs, and output trajectory data according to the set speed. It also supports manually setting the invalid and valid states of simulated satellite positioning information, as well as automatically simulating complex scenarios such as entering and exiting tunnels, enabling comprehensive verification of CIR route data. The device receives the common satellite positioning data output by the tested CIR via a serial port and parses the key information within it. The motherboard compares this information with the currently simulated route database, automatically determining whether the CIR route data and operating status meet expectations. If not, the system immediately provides an error message and records the corresponding latitude and longitude locations and specific error content. The device also features real-time recording of the testing process and output results. Upon completion of the test, the system automatically generates a verification report, providing data creators with detailed references and guidelines for modifications.

[0044] The motherboard communicates with the BDS / GPS emulator using the TCP protocol. This includes establishing a connection, monitoring data, sending data, reconnecting after disconnection, and controlling the BDS / GPS emulator. When the core processing unit determines that communication with the BDS / GPS emulator has been lost, it can control the power supply to the BDS / GPS emulator to power it off and restart it.

[0045] This utility model illustrates its purpose, technical solution, and beneficial effects through specific embodiments. However, these embodiments are merely examples to demonstrate the application of the invention and do not constitute a limitation on the scope of protection of this utility model. We explicitly state that any reasonable modifications, equivalent substitutions, or technical improvements guided by the spirit and principles of this utility model should be included within its scope of protection. This means that as long as these changes do not deviate from the core idea and basic function of the invention, they should be protected by patent rights. The scope of protection of this utility model should be broad, including all directly obvious variations as well as non-obvious innovations that a technical expert can reasonably deduce from the disclosure of this utility model. This broad protection aims to promote further research and development based on this utility model, while ensuring that its innovativeness and practicality receive comprehensive legal protection.

Claims

1. A device for verifying CIR equipment line data, characterized in that, The device includes: The satellite signal self-test circuit has at least one capacitor C1 and an antenna ANT1 connected to pin 11 of the satellite signal receiving chip U11. A communication conversion circuit, the communication conversion circuit comprising at least: a first signal conversion circuit and a second signal conversion circuit, wherein the first signal conversion circuit and the second signal conversion circuit are connected; The satellite signal self-test circuit is connected to the communication conversion circuit via an RF signal generator and a motherboard.

2. The device for verifying CIR equipment line data according to claim 1, characterized in that, The connection methods for the satellite self-test circuit include: Pin 11 of the satellite signal receiving chip U11 is connected to the first end of the capacitor C1, and the second end of the capacitor C1 is connected to pin 1 of the antenna ANT1.

3. The device for verifying CIR equipment line data according to claim 1, characterized in that, The connection method of the satellite signal self-test circuit includes: Pin 22 of the satellite signal receiving chip U11 is connected to pin 1 of the polarization capacitor CE1 and the second end of the resistor R1. The first end of the resistor R1 is connected to pin 2 of the diode D16. Pin 2 of the polarization capacitor CE1 is grounded.

4. A device for verifying CIR equipment line data according to any one of claims 1 to 3, characterized in that, The connection method of the satellite signal self-test circuit includes: Pin 20 of the satellite signal receiving chip U11 is connected to the second end of resistor R4 and the source (S) end of MOSFET Q5; pin 20 of the satellite signal receiving chip U11 is connected to the second end of resistor R92 and the source (S) end of MOSFET Q4.

5. The device for verifying CIR equipment line data according to claim 4, characterized in that, The connection method of the satellite signal self-test circuit includes: The second end of the resistor R4 is connected to the source (S) end of the MOSFET Q5, and the drain (D) end of the MOSFET Q5 is connected to the second end of the resistor R5. The second end of the resistor R92 is connected to the source (S) end of the MOSFET Q4, and the drain (D) end of the MOSFET Q4 is connected to the second end of the resistor R91.

6. The device for verifying CIR equipment line data according to claim 1, characterized in that, The connection method of the communication conversion circuit includes: Pins 10 and 9 of the 232 to TTL chip U1 of the first signal conversion circuit are connected to pins 2 and 3 of the TTL to 422 chip U5 of the second signal conversion circuit, respectively.

7. The device for verifying CIR equipment line data according to claim 1, characterized in that, The connection method of the communication conversion circuit includes: Pins 10 and 9 of the 232 to TTL chip U2 of the first signal conversion circuit are connected to pins 2 and 3 of the TTL to 422 chip U7 of the second signal conversion circuit, respectively.

8. A device for verifying CIR equipment line data according to claim 1, 2, 3, 4, 6, or 7, characterized in that, The radio frequency signal generator includes at least: The system includes a simulator, an attenuator, and a 1-to-8 power divider, wherein the simulator is connected to the attenuator, the attenuator is connected to the 1-to-8 power divider, the 1-to-8 power divider is connected to the satellite signal self-test circuit, and the simulator includes at least a GPS simulator and a BDS simulator.

9. A device for verifying CIR equipment line data according to claim 1, 2, 3, 4, 6, or 7, characterized in that, The motherboard is connected to the communication conversion circuit.

10. A device for verifying CIR equipment line data according to claim 1, 2, 3, 4, 6, or 7, characterized in that, The motherboard is connected to the human-computer interaction module.

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