A kind of portable btm detector and detection method

Abstract

The portable BTM detector of the present application includes on-board equipment, trackside equipment and hand-held equipment, and the on-board equipment is electrically connected to the BTM host; it is used to simulate train control on-board equipment to send information to the BTM host; the trackside equipment is used to simulate sending FSK transponders The message signal can simulate different FSK energy levels; the handheld device is used to generate reports and display test results; all three use wireless communication with the server, and all of them can send test instructions and display test results. Wayside, on-board and handheld devices, cables and chargers are housed in the carrying case. The invention can realize the closed-loop detection of simulated transmission of FSK message signal with adjustable transmission energy and message receiving and sending function through the detector that can be placed in a portable box and taken away, and can realize networking through the BTM information interaction unit Configuration to realize adaptation to various existing BTM host interfaces. It greatly facilitates field application.

Description

technical field [0001] The invention relates to the application field of railway signal equipment detection, in particular to a portable BTM detector and a detection method. Background technique [0002] The Transponder Message Transmission Module (BTM) is mainly composed of a BTM host and a BTM antenna. The main function is to transmit an activation energy signal to the ground transponder through the BTM transmitting antenna, and receive the uplink signal sent by the transponder through the receiving antenna. Therefore, it is particularly important to identify and diagnose abnormalities of the BTM host and antenna, and to maintain and detect them regularly. At present, the overhaul and maintenance of the BTM host and antenna installed on the site are mainly judged by visual inspection, power-on self-inspection, or the operator uses the transponder to send a message under the BTM antenna and observes the status of the BTM indicator light. , the main function and performance...

AI Technical Summary

Problems solved by technology

At present, the overhaul and maintenance of the BTM host and antenna installed on the site are mainly judged by visual inspection, power-on self-inspection, or the operator uses the transponder to send a message under the BTM antenna and observes the status of the BTM indicator light. , the main function and performance of the BTM host and antenna cannot be quantitatively evaluated, and at the same time, they do not have the completeness of detection and do not have portability

[0003] The following problems exist in the current BTM detection device: 1. Need to receive the message data from the interface (hereinafter referred to as the B interface) of the BTM host and the vehicle-mounted equipment. To the B interface, send the data to the ground equipment for analysis. After the detection is completed, you need to reconnect the BTM equipment to the vehicle equipment cable

There are great installation risks in such an operation, including incorrect cable connection, looseness, damage to equipment, etc.; 2. All equipment is integrated in the inspection vehicle, and the operator needs to go down to the maintenance ditch when performing on-site inspection. For the operator There will be problems with electromagnetic radiation, and there will be dangers of strong electricity; 3. The transmitted FSK message signal cannot adjust the amount of energy it transmits, that is, it cannot fully measure the sensitivity of BTM equipment to receive radio frequency energy and decode it; 4. Equipment networking cannot be realized, that is, the test results cannot be automatically backed up to the server or the Internet, which is not convenient for data storage and subsequent analysis; 5. The test system is relatively large and does not have good portability; 6. Some measuring devices pass Manually shrink the fixing device to determine the center point of the BTM antenna. The transmitting antenna cannot be completely positioned at the geometric center point of the BTM antenna through manual positioning.

Images