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Connection detection circuit, alarm device and base station

A technology of connection detection and circuit, which is applied in the electronic field, can solve the problems of hidden dangers in the use of base stations, low detection accuracy, and life safety of maintenance personnel, and achieve the effect of improving detection reliability and detection accuracy

Pending Publication Date: 2021-12-28
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The communication base station plays a vital role in the communication network. Since the base station is often installed at a high place, it is often at risk of being damaged by lightning, and the grounding state of the base station system (including communication equipment, equipment chassis, etc.) is to prevent It is an important part of the lightning system, and if the base station system has poor grounding, it is very likely to cause the life safety of maintenance personnel
[0003] At present, the ground detection device of the base station system only detects whether the protective earth (PE) of the system chassis is on or off, and the detection accuracy is low. Large, but still within the normal impedance range reported by the detection device for grounding, which brings potential safety hazards to the use of the base station

Method used

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  • Connection detection circuit, alarm device and base station
  • Connection detection circuit, alarm device and base station
  • Connection detection circuit, alarm device and base station

Examples

Experimental program
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Effect test

example 1

[0056] Such as figure 2 As shown, the connection detection circuit includes a first connection port, a detection module 10, a signal processing module 20 and an alarm module 30 connected in sequence, wherein the first connection port is used to connect to the first voltage reference plane, and the detection module 10 includes a first detection component , the second detection component and the detection output terminal, the first detection component is connected in series between the first connection port and the detection output terminal, and the second detection component is connected in series between the detection output terminal and the second voltage reference plane; the signal processing module 20 is provided with a signal input terminal and a signal output terminal, the signal input terminal is connected to the detection output terminal, and the signal processing module 20 is used to generate a signal that varies with the first detection signal according to the first d...

example 2

[0066] Such as image 3 As shown, the difference between the connection detection circuit of Example 2 and the connection detection circuit of Example 1 is that the first detection component is the second capacitor C2, and the rest of the circuit components are the same, so the output first voltage value V1 at the detection output terminal satisfies the following formula :

[0067]

[0068] Among them, w=2πf, f is the power frequency frequency of the input voltage.

[0069] Since the circuit structures of the signal processing module 20 and the alarm module 30 are the same as those in Example 1, the calculation of the amplified voltage V0 also satisfies the following formula:

[0070]

[0071] The amplified voltage V0 is filtered by the filter circuit to obtain the second detection signal, that is, the second voltage value V2, and the alarm module judges the magnitude of the impedance Rx according to the magnitude of the second voltage value V2 to obtain the grounding s...

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Abstract

The invention discloses a connection detection circuit, an alarm device and a base station. The connection detection device comprises a first connection port, a detection module, a signal processing module and an alarm module which are connected in sequence, the first connection port is used for connecting a first voltage reference plane, and the detection module comprises a first detection part, a second detection part and a detection output end. The first detection part is connected in series between the first connection port and the detection output end, and the second detection part is connected in series between the detection output end and the second reference voltage plane; the detection output end can output a first detection signal related to the potential difference between the first voltage reference plane and the second voltage reference plane, and the signal processing module can generate a second detection signal changing along with the first detection signal; and the alarm module can accurately judge the connection state between the second voltage reference plane and the first voltage reference plane according to the second detection signal, so that the detection precision and reliability of connection detection can be improved.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a connection detection circuit, an alarm device and a base station. Background technique [0002] The communication base station plays a vital role in the communication network. Since the base station is often installed at a high place, it is often at risk of being damaged by lightning, and the grounding state of the base station system (including communication equipment, equipment chassis, etc.) is to prevent It is an important part of the lightning system, and if the base station system has poor grounding, it is very likely to cause the life safety of maintenance personnel. [0003] At present, the ground detection device of the base station system only detects whether the protective earth (PE) of the system chassis is on or off, and the detection accuracy is low. Large, but still within the normal impedance range reported by the detection device for grounding, which bring...

Claims

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Application Information

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IPC IPC(8): G01R31/52G01R31/66
CPCG01R31/52G01R31/66G01R31/54G01R27/20
Inventor 王奥运王德举马金波肖开祥王国慧李慧娟
Owner ZTE CORP
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