Leakage Cable Detector Launcher and System with Automatic Temperature Compensation

An automatic compensation and leakage cable technology, applied in the direction of temperature control, electric alarm, control/regulation system, etc., can solve the problems of equipment working stability, unstable machine performance and temperature influence, etc., to ensure the performance of equipment. Effect

Active Publication Date: 2016-07-06
SHANGHAI WULING SHENGTONG INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The high temperature in summer in the south reaches 40℃~50℃, and the large temperature difference in the environment causes the instability of the machine performance, especially as the main component of the leakage cable intrusion detector, the transmitter unit is more affected by the temperature.
Because as the ambient temperature changes, the transmitting power of the transmitting device will also change significantly, and the sensitivity of the whole machine will change accordingly, and the working stability of the equipment will be greatly affected.

Method used

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  • Leakage Cable Detector Launcher and System with Automatic Temperature Compensation
  • Leakage Cable Detector Launcher and System with Automatic Temperature Compensation
  • Leakage Cable Detector Launcher and System with Automatic Temperature Compensation

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Embodiment Construction

[0034] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0035] figure 1 The overall structure of an embodiment of the leaky cable detector system with automatic temperature compensation function is shown. The system of this embodiment includes a host 1 and two leaky cables 2, 3, wherein the host 1 further includes a transmitter 11, Receiving means 12 , processing means 13 , output means 14 and power supply 15 . The transmitting device 11 is connected to the leaky cable 2 , and the receiving device 12 is connected to the leaky cable 3 .

[0036] For the internal structure of the launching device 11, please refer to figure 2 The transmitting device 11 comprises a crystal oscillator circuit 112, a driving circuit 113, a power amplifier circuit 114 and an automatic temperature control circuit 111, wherein the crystal oscillator circuit 112 generates a radio operating frequency signal, which is output to the d...

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Abstract

The invention discloses a leaking cable detector emitting device and a system with automatic temperature compensation function, so that the detector can still output stable transmitting power under the condition that the temperature in the field changes greatly, thereby ensuring the stability of equipment performance. The technical solution is: the transmitting device includes a crystal oscillator circuit, a driving circuit and a power amplifier circuit, wherein the crystal oscillator circuit generates a radio frequency signal, outputs it to the driver circuit to amplify and adjust the working frequency signal, and then transmits it to the power amplifier circuit After the power is amplified and output, the device also includes an automatic temperature control circuit, the output end of the automatic temperature control circuit is connected to the power amplifying circuit, and a variable regulating voltage is provided to adjust the output power of the power amplifying circuit.

Description

technical field [0001] The invention relates to a leaky cable detector, in particular to a leaky cable detector that can work normally in outdoor conditions where the ambient temperature changes greatly. Background technique [0002] Leakage cable intrusion detector is an outdoor perimeter intrusion detection device based on radio transmission, reception and signal processing. It is mainly used in banks, airports, villas, government agencies, public security prisons, military targets, enterprise warehouses and other important building perimeters The perimeter of the boundary, with the main purpose of security and alarm. The concealment of shallow buried underground installation, three-dimensional space protection against electromagnetic waves, and all-weather working features have gained more and more recognition from the market. [0003] The system consists of a detector host and two specially processed leakage cables. The detector host is composed of a transmitter, a rec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08B13/24G05D23/24
Inventor 宋祖安叶毅涛许雯祁巍郭斌潘志豪秦立陆士君王爱萍
Owner SHANGHAI WULING SHENGTONG INFORMATION TECH CO LTD
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