RU2134455C1 - Flexible locking-sealing device with radiometric sensor - Google Patents

Abstract

FIELD: guarding equipment. SUBSTANCE: flexible locking-sealing device has metal cable with one end squeezed by means of regulating washer and other end extending through two openings of die to define arced loop, which is fixed by seal. Die has base, cover and radiometric sensor positioned between base and cover and having power source with converter for converting energy of outer sources into electric energy, code pulse former, transmitter, antenna, and two cable position sensors. EFFECT: increased efficiency and enhanced reliability in operation. 6 cl, 2 dwg

Description

 The invention relates to security devices that are used to protect the doors of freight vehicles, containers, storage facilities, etc. from unauthorized entry of unauthorized persons into them.

 Known locking and sealing device containing a metal cable, one end of which is compressed by a control washer, and the other end, passing through two holes of the die and forming an arcuate loop, is fixed by a seal [1].

 Known self-locking seal containing a housing with end caps with central axial holes and an internal conical cavity, in which a separator is located with a central axial hole and balls for interacting with a locking element, mainly a cable, at one end of which a sleeve is fixed for interacting with the housing, while the separator is made in a conical shape and is fixedly mounted in the housing; along the separator generators, grooves are made in which spring-loaded stops are mounted for balloons [2].

 A universal flexible locking and sealing device is also known, including a cable segment and its fixing elements located in the housing, while the locking elements are made with the possibility of hard circuiting the two ends of the cable segment by interacting with their side surfaces with their inner surface, and additionally equipped with a sealing element [ 3].

 The closest analogue is the device [1].

The disadvantage of the above locking and sealing devices are:
- low security from simulating the operational state of the locking and sealing device after its destruction and unauthorized opening of the protected object;
- the high complexity of work to control the integrity of the locking and sealing device in the process of transporting goods and the inability to organize a "deserted" technology for the automated recording of vehicles and goods.

 The essence of the invention consists in the following: a flexible locking and sealing device with a radio sensor is proposed, hereinafter referred to as ZPU, containing a metal cable, one end of which is compressed by a control washer, and the other end, passing through two holes of the die and forming an arcuate loop, is fixed by a seal, which differs the fact that the die is made in the form of a base and a cover, between which a radio sensor is located, consisting of a power source with an energy converter of external sources into electric, ovatelya message frame, the transmitter antennas and two cable position sensors. Each of the two sensors for the position of the cable is made in the form of a hollow sleeve made of insulating material, into which two counter-located knife-shaped contacts are installed in the upper and lower parts of the sleeve, parallel to the end face of the sleeve, while the contact points of the contacts with the cable are in the same diametrical plane, the sensor bushings are parallel to each other and perpendicular to the base of the die, and their diametrical planes, in which there are points of contact with the cable, coincide. The contacts in the bushings are arranged in such a way that due to the elastic properties of the cable, the left upper and right lower contacts of the left sleeve and the upper right and left lower contacts of the right sleeve are closed through the cable and there is no short circuit through the cable of the lower left and right upper contacts of the left sleeve and upper left and the lower right pins of the right bushing. To ensure reliable contact with the cable under operating conditions, the edges of the contacts are knife-shaped. In one of the bushings, a secondary cable installation sensor is fixed, consisting of a metal casing, a rod of insulating material installed in it, a fixing pin, a coil spring and two normally open contacts. The output information transmitted over the air and containing information about the codes of the stations of the consignor, consignee, etc., contains additional information about the integrity of the ZPU.

 Information transfer by a radio sensor over a radio channel is possible only when external sources are exposed to the switchgear.

 The proposed device increases the security of the switchgear from simulating a working condition after its destruction in case of violation of the integrity of the cable loop (when removing the switchgear from the eyes of the locking unit), followed by a simulation of the working condition of the cable or when replacing the cable.

 In the first case, the technical result is achieved due to the fact that the elastic properties of the cable change when its integrity is violated, while the contacts closed by the cable form a combination that differs from the combination of contacts when the cable is working, and the output information via the radio channel is transmitted with a sign of violation of the integrity of the switchgear.

 In the second case, the technical result is achieved by the fact that a secondary cable installation sensor is additionally introduced into the sleeve of one of the cable position sensors, which is triggered when the cable is replaced during operation. Moreover, the output information on the radio channel is also issued with a sign of violation of the ZPU.

 The lack of information from the guarded object on which the ZPU was installed indicates a violation of the integrity of the plate or the absence of the ZPU as a whole, which is recorded by a stationary or portable receiving device.

 The proposed ZPU reduces the complexity and increases the reliability of the work to control the integrity of the ZPU in the process of transportation of goods, and also allows you to organize automated accounting of the movement of vehicles and goods. The technical result is achieved due to the fact that the highway is equipped with control posts that provide power to the switchgear from external sources and receive output information transmitted through the radio channel from the switchgear when vehicles move past the checkpoint, which allows you to organize remote automated control of the switchgear integrity, thereby eliminating manual labor.

 In FIG. 1 shows the ZPU in the final assembly position; FIG. 2 is a structural diagram of a radio sensor.

 ZPU consists of a metal cable 1 with a rigidly mounted control washer 2, seal 3 and a die made in the form of a cover 4, a base 5, between which a radio sensor is placed. The structure of the radio sensor (Fig. 2) includes position sensors for the cable 1, 2, a secondary installation sensor for the cable 3, a power source 7 with an external source to electrical energy converter 8, code transmitter 4, transmitter 5, antenna 6.

 Structurally, the components of the radio sensor are made as follows: each of the position sensors of the cable (Fig. 1) consists of a sleeve 7 and four knife-shaped contacts 8; the sensor of the secondary installation of the cable consists of a metal body 9, a rod of insulating material 10, a coil spring 11, a fixing wire pin 12 and a contact device in the form of two normally open contacts 13; a power source, a code transmitter and a transmitter constituting the electronic module are located on the printed circuit board 14. On the front wall of the die in zone 6 there is an external energy converter for electrical energy and an antenna.

 When installing the switchgear on the protected object, the free end of the cable 1 is passed from below through one of the sensors of the position of the cable dies, the eyes of the locking unit 15 and from above through another sensor of the position of the cable so that the loop formed in this case has an inner diameter of at least the center distance of the bushings on the free end the cable is put on a self-locking seal 3. The cable, due to its elastic properties, closes the left upper and right lower contacts of the left sleeve and the upper right and left lower contacts of the right sleeve and does not close left lower and right upper contacts of the left sleeve and left upper and right lower contacts of the right sleeve.

 At the same time, when passing the cable through the sleeve in which the secondary cable installation sensor is located (Fig. 1, section A-A, view B), the rod 10 is displaced by the action of the cable, cuts off the fixing wire pin 12 and is held in the displaced position by the action of the spring 11, wherein the contacts 13 of the secondary cable installation sensor are open.

 With this arrangement of the cable relative to the sensors 1, 2, 3 (Fig. 2) in the code package of the shaper 4 of the radio sensor, a sign of operability of the ZPU is issued. The frequency of the transmitter 5, modulated by the code of the shaper 4, is emitted by the antenna 6 and transmitted over the air.

 With any other combination of contacts of sensors 1, 2, closed by a cable (for example, when the cable is destroyed and its integrity is simulated), a code message is formed with a sign of violation of the integrity of the switchgear.

 A code message with a sign of violation of the integrity of the ZPU is also formed in the case of a replacement cable. After removing the cable from the ZPU, the rod 10 of the secondary cable installation sensor (Fig. 1) under the action of the spring 11 moves to the place previously occupied by the cable and releases the upper contact (type B), which, under the action of the spring forces, moves down and closes with the lower fixed contact . In this case, the diameter of the rod, the dimensions of the movable contact and the depth of its stroke are selected such that reinstalling the cable does not lead to the opening of the sensor contacts.

 Record of service information in the shaper of the code parcel about the stations of departure, destination, consignor, consignee, etc. produced by contact or non-contact method when installing the switchgear on the object.

 Thus, the proposed ZPU, firstly, allows you to control the unauthorized opening of protected goods and objects; secondly, to organize a "deserted" technology to monitor the health of the ZPU in the process of transporting goods. For example, the use of such ZPUs on the railroad will automate and bring together the movement of vehicles and goods into a unified computer network, as well as allow timely identification of facts of violation of the integrity of the ZPU and localize those sections of the route on which the specified violation occurred.

 The manufactured samples of ZPUs, in which photocells were used as an energy converter of an external source, underwent a positive mechanical and climatic test under conditions corresponding to the operating conditions using special stationary receiving equipment.

Sources of information:
1. A leaflet on the seal-constipation "Octopus-Universal" (option B) (or RF patent N 2098585).

 2. RU, patent 2072929, B 61 D 49/00, 05/05/97.

 3. RU, patent 2104910, B 65 D 55/06 from 05.16.96.

Claims (6)

 1. A flexible locking and sealing device containing a metal cable, one end of which is compressed by a control washer, and the other end, passing through two holes of the die and forming an arcuate loop, is fixed with a seal, characterized in that the die is made in the form of a base and a cover, between which a radio sensor is placed, consisting of a power source with a converter of energy from external sources into electrical energy, a code transmitter shaper, a transmitter, an antenna, and two cable position sensors.  2. The device according to claim 1, characterized in that each of the two position sensors of the cable is made in the form of a hollow sleeve made of insulating material, into which two counter-shaped knife-shaped contacts are built in the upper and lower parts of the sleeve, parallel to the end face of the sleeve, the contact points of the contacts with the cable are in the same diametrical plane, the sensor bushings are parallel to each other and perpendicular to the base of the die, and their diametrical planes, in which there are contact points with the cable, coincide give.  3. The device according to claim 2, characterized in that the contacts in the bushings are arranged so that due to the elastic properties of the cable, the left upper and right lower contacts of the left sleeve and the upper right and lower left contacts of the right sleeve are closed through the cable and there is no short circuit through the cable the left lower and upper right contacts of the left sleeve and the upper left and lower right contacts of the right sleeve.  4. The device according to claims 2 and 3, characterized in that in one of the bushings a secondary cable installation sensor is fixed, consisting of a metal body, a rod made of insulating material, a fixing pin, a coil spring and two normally open contacts.  5. The device according to claims 1 to 4, characterized in that the information is transmitted by the radio sensor over the radio channel to the receiving device only when exposed to a flexible locking and sealing device energy from external sources.  6. The device according to claims 1 to 5, characterized in that the output information transmitted over the air contains additional information about the integrity of the flexible locking and sealing device.

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