Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Antitheft and alarm system of cable

An anti-theft system and anti-theft alarm technology, which is applied in the direction of anti-theft alarm mechanical start-up, alarms, alarms that rely on broken/disturbed straightened ropes/metal wires, etc., can solve the problem of affecting distance measurement accuracy and increasing total impedance. problem, to achieve a strong practical effect

Active Publication Date: 2016-05-04
BEIJING YUNXINGYU TRAFFIC SCI & TECH
View PDF10 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this scheme is connected in parallel on the cable so that there is a normal total impedance. If the cable is broken, the total impedance will become larger. According to the degree of impedance change, the distance of the broken cable can be roughly judged. The distance between street lamps is short, and the measurement error is acceptable. If the light distance is too large, it will seriously affect the ranging accuracy

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Antitheft and alarm system of cable
  • Antitheft and alarm system of cable
  • Antitheft and alarm system of cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] figure 1 A general diagram of a cable anti-theft alarm system consistent with a specific embodiment of the present invention is shown. As shown in the figure, the system needs to connect two alarm modules (distribution boxes) in series on the original power supply line to be transformed, which are respectively located at the power supply end and the power consumption end. The monitoring center is equipped with a central computer and alarm software to receive alarm information from the alarm box and provide alarm information to relevant personnel. It can also be configured to obtain alarm module information under the control of the monitoring personnel.

[0025] The alarm module on the cable has two working modes, normal mode and detection mode.

[0026] In normal mode, the equipment supplies power normally, and the alarm module detects the voltage on the cable. When the upper or lower alarm module detects that the cable is powered off, it enters the detection mode, and...

Embodiment 2

[0032] figure 2 It is a power supply terminal alarm module consistent with the embodiment of the present invention, image 3 It is an alarm module for power consumers consistent with the embodiment of the present invention.

[0033] The power supply terminal alarm module includes: power supply terminal, cable terminal, contactor, relay, wide temperature DC UPS module, door open sensor and cable detection board; the power consumption terminal alarm module includes: power consumption terminal terminal , Cable terminals, contactors, relays, wide temperature DC UPS modules, door open sensors and cable detection boards. As shown in the figure, the four main wires are neutral wire N, live wire L1, L2, and L3; the contactor is a wire package of a 220V AC contactor, and the contacts controlled by it are connected by a dotted line; the relay is a low-voltage relay, and its controlled normal The closed contacts are connected by dotted lines, the normally closed contacts are represent...

Embodiment 3

[0036] Figure 4 A schematic diagram of a cable sense board system consistent with an embodiment of the invention is shown.

[0037] The cable detection board includes a power-off relay interface, a door opening sensor interface, a voltage detection interface, an A / D acquisition module, a pulse generation module, a signal conditioning module, a broken cable detection interface, CPLD / FPGA, a mobile phone module and a host computer communication module .

[0038] In the normal working mode, the relay is released, the contactor inside the alarm module of the power consumption end and the alarm module of the power supply end is closed, the cable detection port is disconnected, and the cable detection board detects the voltage. When a transfer condition occurs, it switches to the cable detection mode. The relays of the two modules are closed, the contactor is released, the cable detection port is connected to the cable, and the detection signal is sent regularly. If the cable leng...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an antitheft and alarm system of a cable. A power supply end alarm module and an electric end alarm module have access to the portions, close to power supply equipment and electric equipment, of a power supply line of the system respectively in a series mode. The power supply end alarm module and the electric end alarm module comprise cable detecting boards. The position of a broken cable (short circuit or open circuit) can be detected through the cable detecting boards. High-voltage impulse waves are sent to the cable through an original point, when the impulse waves encounter a breakpoint or short circuit point, echoes can be generated and are reflected to the original point at the speed approximate to light speed, the original point measures the echoes at high speed and then calculates the time difference between emitting and the echoes, and therefore the length of the broken cable is obtained. Patrol personnel can reach the site in time through a vehicle, or start an alarm near the position of the broken cable after obtaining alarm information, the cable stealing behavior is stopped, the scheme is specifically designed to solve the problem of high-frequency loss of a low-voltage main cable, and high practicality is achieved.

Description

technical field [0001] The invention relates to the field of cable anti-theft alarm, in particular to a cable anti-theft alarm system. Background technique [0002] In recent years, cable theft activities have become increasingly rampant, and the anti-theft work of relevant management departments has become difficult. Frequent theft activities have brought many unstable factors to the society and caused huge economic losses. Therefore, the relevant management departments urgently need an effective cable anti-theft alarm system in order to improve the management level and deter criminals from stealing. [0003] Although the existing cable anti-theft methods are many at present, many have the problem of false alarm. The power carrier solution is a more advanced solution. Although it can detect multiple lines, it cannot report the specific location of the breakpoint. When the inspectors slowly search for the location of the breakpoint on the highway without street lights, they...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G08B13/12G08B25/10
CPCG08B13/12G08B25/08
Inventor 李志宏张明月张新吴俊辉石奇峰刘建会宿井明
Owner BEIJING YUNXINGYU TRAFFIC SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products