Charging signal testing tool

By designing a charging signal testing fixture and utilizing components such as an NB-IoT communication module and an MCU microcontroller, the problem of the complexity and high cost of existing signal testing instruments is solved, achieving convenient and accurate signal detection results.

CN224218469UActive Publication Date: 2026-05-08泰山燃气集团有限公司
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Patent Information

Application Number
CN202520723764.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-17
Publication Date
2026-05-08
Estimated Expiration
2035-04-17

AI Technical Summary

Technical Problem

Existing signal testing instruments are complex in structure and expensive, making it difficult to perform signal strength testing conveniently.

Method used

A charging signal testing fixture was designed, comprising a housing, a rechargeable lithium battery, a smart control motherboard, an LCD display module, and indicator lights. It employs an NB-IoT communication module, an MCU microcontroller, a Bluetooth module, and a voltage conversion module to analyze signal conditions through an NB-IoT base station, thereby achieving portable signal detection.

Benefits of technology

It enables portable signal strength detection, accurately measures local environmental signals, has a fast response time, and allows for manual signal detection and result display without the need for external equipment.

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Abstract

The utility model provides a charging signal test tool. The structure of the tool comprises a housing, a rechargeable lithium battery, an intelligent control mainboard, a liquid crystal display module and an indicating lamp. A display screen of the liquid crystal display module is arranged on the surface of the shell, and the indicator lamp is arranged on the surface of the shell and below the display screen; the rechargeable lithium battery and the intelligent control mainboard are arranged in the shell; according to the utility model, the MCU on the intelligent control board on the signal detection tool triggers the communication units (the communication module, the SIM card and the antenna) to be powered on and started up, and after network searching detection, data is transmitted back to the MCU and displayed on the liquid crystal screen; the real signal receiving condition of the NB Internet of Things membrane meter is simulated, external equipment does not need to be connected, and network searching signal detection can be manually completed in real time and displayed on a liquid crystal screen. The tool is portable to carry, the signal intensity of the local environment can be accurately measured, the product response time is short, and the test is accurate.
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