CN2137382Y

CN2137382Y - Anti-theft telecontrolled alarm for electric power equipments

Info

Publication number: CN2137382Y
Application number: CN 92220756
Authority: CN
Inventors: 马常臣
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-09-22
Filing date: 1992-09-22
Publication date: 1993-06-30
Anticipated expiration: 2002-09-22

Abstract

The utility model relates to an anti-theft telecontrolled alarm for electric power equipment, which comprises a monitor, a trigger circuit, a coding circuit, and a transmitting circuit. The alarm is controlled by the balanced state of a transformer, a controller, and a line controller, to realize long-term protection to the transformer and currentless type protection to power circuits. When control wiring is destroyed, the utility model transmits direction coding signals towards the sky, and the people of joint defence go to catch criminals accurately according to the direction alarm signals provided by a receiving device.

Description

Anti-theft telecontrolled alarm for electric power equipments

The utility model relates to a kind of power equipment theft preventing remote control alarm device, and it is applicable to the open-air transformer in rural area, the protection of power circuit and the burglar alarm of other power equipment.

At present, in the prior art, being used for the device of power equipment burglar alarm, generally all is that the sound equipment formula is reported to the police.Utilize alert acoustic shock to fear criminal, criminal is escaped on getting wind of the matter, be difficult to make criminal to be caught in the meshes of law.

Task of the present utility model provides a power equipment anti-theft remote-control alarm, it can utilize the line end controller that transformer is protected for a long time, power circuit there is not electric formula protection, when taking place to steal feelings, alarm can be exactly to aerial launch azimuth coding alerting signal, the joint defence personnel accurately launch an attack and arrest criminal according to the orientation alerting signal that receiving trap provides.

For solving above-mentioned task, the solution that the utility model adopted is: by watch-dog, trigger circuit, coding circuit, radiating circuit constitutes warning device, utilize line end controller a, b carries out balanced type control to institute's operation circuit, its concrete scheme is to fix two a at transformer oil box cover two ends, b line end controller, replace the transformer fastening bolt with controller hollow bolt, nut is screwed, and then cartridge controller, the shell upper end of controller is nut type, the centre is provided with two insulating trips that have the contact, cut spring is housed in the middle of the insulating trip, following insulating trip contact connects controlling resistance, and the resistance lower end is with drawing housing, and upper contact connects lead-in wire and draws in the middle of the hollow bolt, by the rugged housing nut upper contact is under pressure, with the lower contact closure, produce path, with a, the b controller inserts machine AB, the BC input end, and at the alternate a type controller in parallel again of a line end controller, because in the b type controller also be two resistance that are in parallel.Be exactly the AB phase like this, the control mode between the BC phase obtains equilibrium state.Criminal will be to the transformer controller of just must dismantling of committing theft, this moment, the controller contact flicked, the formation shape that opens circuit, as control line is carried out short circuit, also can make controller form uneven duty, or four control lines of two controllers are cut off simultaneously, be connected on the seven input end controller a that report to the police and also can form uneven monitor-type, so no matter criminal adopts any means to destroy, and the alarm warning that can both be triggered has so just solved the protection task to transformer reliably.

The protection of power circuit utilizes line end controller a, b that power circuit is protected.The guard wire way is unrestricted, can control protection to multichannel.Line end controller a is connected on the alternate top of the AB two of prevention and control circuit with terminal, connects a b type controller at the alternate end of BC, so just makes operation circuit form balanced type.Because machine is that circuit is not had the protection of electric formula,,, cut-off switch should be left behind when electricity during the phase so will establish an outage threephase switch in low pressure master switch bottom.The electricity phase after finishing closes switch, and the line midline side controller need not be dismantled, and uses all the year round.When power circuit is carried out the multichannel protection, as long as branch switch is closed.Criminal breaks or short circuit can both make machine alarm to circuit, so just reliably circuit has been carried out protection.

Utilize the function of alarm, can control and to the defense controls of door and window other power equipment to equilibrium state control.

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the utility model embodiment circuit theory diagrams.

Fig. 2 is the utility model scheme of installation.

Fig. 3 is the structural drawing of the utility model embodiment line end controller a.

Fig. 4 is the structural drawing of the utility model embodiment line end controller b.

Fig. 5 is the utility model receiving trap theory diagram.

In Fig. 1, (102) are trigger circuit, and (103) are coding circuit, and (104) are radiating circuit, all are common circuit, do not mark in the figure.Watch-dog (101) is to utilize four high guaily unit integrated circuit LN324 and peripheral element R1-R13, C1-C5, D1-D2 constitutes the balance comparer, comparer is controlled by the resistance between AB phase and the BC phase, this resistance is exactly line end controller a, the resistance of b, when the line end controller is in equilibrium state, two output terminals of comparer all are low level state, when equilibrium state out of control, occur opening circuit or short-circuit condition, output level will have one and be turned into high level rapidly, this high level touches out trigger circuit (102), makes coding circuit (103), radiating circuit (104) gets noble potential and starts working.

Coding circuit (103) is to be made of counting circuit 4017, hex inverter 4069 integrated circuit and peripheral cell, it can export different pulse signals as required, these pulse signals are delivered to transmitter, transmitter is launched these signals, has so just received the effect of azimuth coding tele-alarm.

Among Fig. 2, realized the equilibrium state of transformer protection circuit is controlled line controller a by controller a, b, be controlled at the AB phase top of every road protection circuit and not the end, line controller b, the BC that is controlled at every road protection circuit is terminal mutually, realizes the balanced type protection of line controller.The target K1 of institute is a transformer output low-voltage circuit master switch among the figure, K2, K3, K4 are the branch switches of every road main line, K5 is the special switch that is provided with of alarm, because alarm is carried out no electric formula protection to circuit, so during the phase, K5 should be pulled off, after the electricity phase finishes at electricity, because of K2, K3, K4 branch switch are closed K5 after closing again, realize protection to all circuits.Controller a, b in the protection circuit need not dismantle when electricity is arranged, can be for using all the year round.From synoptic diagram as can be seen, transformer and power circuit all are in the equilibrium state control of controller a, b, and destroyed when controller, the protection circuit is opened circuit or during short circuit, all can make machine be in uneven duty, makes alarm equipment alarm.

In Fig. 3, Fig. 4, controller a is a resistance that is contained in the cavity, and controller b is 2 resistance that are contained in the cavity, and in addition, its structure is identical.Controller by housing (1), upper contact (2), lower contact (3), cut spring (4), controlling resistance (5), down lead-in wire (6), hollow bolt (7), hold-down nut (8), go up lead-in wire (9), bucker (10) constitutes.Housing (1) available metal or plastics manufacturing, the upper end of housing (1) is nut type, middle-end is provided with two and has upper contact (2), the insulcrete of lower contact (3), adorn a cut spring (4) in the middle of the insulcrete, lower contact (3) is connected with controlling resistance (5), housing is drawn by go between down (6) in the resistance lower end, upper contact (2) connects lead-in wire (9), draw from hollow bolt center, by the stiffened shell nut, upper contact (2) is under pressure and the closed path that forms of lower contact (3), then bucker (10) is held in hollow bolt (7) upper end, anti-sealing immerses from screw hole.Adopt this kind control measure, very reliable, no matter be that criminal dismantles nut, sawed-off bolt, or operation circuit is carried out short circuit, the controller upset is triggered, cause warning.

Fig. 5 is the utility model embodiment theory diagram, and receiving trap all is a circuit common in the remote control equipment, and concrete circuit does not mark.Only do an explanation with regard to theory diagram.

Receiving trap differentiates that by receiver (201), amplifying circuit (202), mu balanced circuit (203), signal (204), integration shaping (205), decoding scheme (206), warning circuit (207), driving circuit (208), digital (209), the power supply (210) of showing constitute.

When receiver receives the pulse radio signal that alarm sends, this signal carries out signal by amplifying circuit and amplifies, after signal is differentiated by Discr., carry out shaping by integrating circuit, the reduction pulse signal, by decoder for decoding, this pulse signal at first touches out warning circuit, makes alarm equipment alarm then.Deliver to driving circuit in addition, signal is shown from charactron.Loudspeaker is provided with change-over circuit, is in alert locations under the monitor state, and during the alarm free signal, loudspeaker is noiseless.When alerting signal occurring, switch is placed monitoring position, can hear azimuth coding pulse signal sound clearly.The joint defence personnel can show and azimuth coding sound according to number, judge criminal's crime orientation, place immediately, accurately launch an attack, and arrest criminal.So just received effect to the power equipment theft preventing remote control alarm.

Claims

1, a kind of power equipment anti-theft remote-control alarm, it includes watch-dog (101), trigger circuit (102), coding circuit (103), radiating circuit (104), power supply (105) constitutes remote control alarming unit, watch-dog is subjected to line end controller a (106), the equilibrium state control of b (107), when equilibrium state is destroyed, alarm is to aerial launch azimuth coded signal, it is characterized in that: watch-dog (101) is with four high guaily unit integrated circuit LN324 and peripheral cell R1-R13, C1-C5, the balance monitoring comparer that D1-D2 constitutes, the balance monitoring is decided by line end controller a (106), the equilibrium state input that b (107) is constituted, just in transformer prevention and control circuit and line of electric force prevention and control circuit, utilize the balanced distribution of line end controller to control the duty of watch-dog, when watch-dog (101) when being in normal monitor state, supervisor controller A2, the A4 output terminal is low level, operation circuit is no matter by short circuit or open circuit like this, can both make A2 or A4 be turned into high level, cause warning, thereby reach antitheft monitoring purpose power equipment.

2, power equipment anti-theft remote-control alarm according to claim 1, it is characterized in that: watch-dog (101) is to be made of four high guaily unit integrated circuit LN324 and peripheral cell R1-R13, C1-C5, D1-D2, when monitor state, output low level is monitored time output high level out of control.

3, power equipment anti-theft remote-control alarm according to claim 1 is characterized in that: line end controller a(106) be 1 resistor that is contained in the controller shell.

4, power equipment anti-theft remote-control alarm according to claim 1 is characterized in that: line end controller b(107) be 2 resistors that are contained in the controller shell.

5, power equipment anti-theft remote-control alarm according to claim 1, it is characterized in that: the structure of line end controller is by housing (1), upper contact on the insulcrete (2), lower contact (3), cut spring (4), controlling resistance (5), hollow bolt (7), hold-down nut (8) constitutes, housing (1) is with plastics or metal manufacturing, the upper end of housing (1) is nut type, middle-end is equipped with two and is provided with upper contact (2), the insulating trip of lower contact (3), dress cut spring (4) in the middle of the insulating trip, lower contact (3) connects controlling resistance (5), controlling resistance (5) termination is down drawn housing, upper contact (2) connects lead-in wire and draws in the middle of hollow bolt (7), make two closings of contact up and down by reinforcing case nut, criminal is if dismantle controller, two contacts just automatically spring open, if sawed-off hollow bolt (7), the capital forms open-circuit condition, makes machine alarm.

6, power equipment anti-theft remote-control alarm according to claim 1 is characterized in that: line end controller a, be controlled at the AB phase top and the end of circuit, and line end controller b is controlled at the end of circuit BC phase.