Cable trench small animal detection sensing device

Abstract

The utility model relates to a cable trench small animal detection sensing device which comprises a circuit control chamber and a measurement air chamber bin. An air inlet and an air outlet are respectively formed in the side wall of the measuring air chamber bin, a first controllable shutter is arranged at the air inlet, and a second controllable shutter is arranged at the air outlet; a multi-gas sensing module is arranged in the measuring gas chamber bin; an MCU, an auxiliary power module and a Bluetooth module are arranged in the circuit control chamber, the MCU is electrically connected with the Bluetooth module, the multi-gas sensing module, the first controllable blind window, the second controllable blind window and the auxiliary power module, and the auxiliary power module is electrically connected with the first controllable blind window and the second controllable blind window. The auxiliary power supply module is connected to a commercial power supply through the power supply interface. According to the utility model, the multi-gas sensing module is arranged to detect the gas in the cable trench, gas data about whether small animals exist or not can be provided, and subsequent judgment of whether small animals exist in the cable trench or not is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the substation safety production field, concretely relates to a cable trench small animal detection sensor device. BACKGROUND

[0002] Small animals have been one of the focuses of the safety hidden danger of power facilities in substations, opening and closing stations and the like, and the crawling and biting of small animals will cause cable external damage, switch tripping, and even entering the switch cabinet, causing serious consequences such as switch cabinet explosion and fire. In recent years, there have been several cable short circuit accidents caused by small animals.

[0003] The existing measures to prevent small animals from invading have the following points: first, cable duct design is used. Closed cable ducts are used to completely package cables, preventing small animals from entering. By plugging, it is ensured that small animals cannot enter. Second, alarm sensors are set. Infrared, ultrasonic and other sensors are set at the entrance of the cable duct and along the line, and an alarm is given as soon as an animal invades. Third, construction protection measures. Such as setting up temporary fences during construction to prevent small animals from entering the construction area. Fourth, regular inspection and maintenance. Regularly check the cable trench, clean up weeds and debris in time to prevent small animals from hiding and forming nests. Fifth, use of driving measures. Such as regularly playing audio to drive small animals around the cable trench, or using infrared driving devices. Sixth, physical protection. Such as setting up stainless steel mesh covers or iron wire meshes at the cable trench entrance to block the access of small animals. Seventh, plague rat extermination. According to the seasonal characteristics, regularly carry out plague rat extermination around the cable trench to eliminate small animal hazards.

[0004] The above measures are usually preventive measures, but in fact, there are still phenomena of small animal invasion, and operation and maintenance personnel cannot discover the entrance of small animal invasion in time. In order to discover the invasion of small animals into the cable trench in time and avoid causing safety hazards, the utility model provides a cable trench small animal detection sensor device, which can set multiple gas sensing modules for the smell that may be emitted by small animals or food in the cable trench, detect the gas in the cable trench, provide gas data for the subsequent judgment of whether there are small animals in the cable trench, greatly improve the cable trench control strength of the substation, and reduce the situations of switch cabinet short circuit and cable damage caused by small animals. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a cable trench small animal detection sensor device, which sets multiple gas sensing modules for the smell that may be emitted by small animals or food in the cable trench, detects the gas in the cable trench, and provides gas data of whether there are small animals.

[0006] In order to achieve the above object, the technical scheme of the utility model is: a cable trench small animal detection sensing device, including circuit control chamber and measurement gas chamber bin, the side wall of measurement gas chamber bin is equipped with air inlet and air outlet respectively, the first controllable louver is equipped with in air inlet, the second controllable louver is equipped with in air outlet, in order to realize the opening and closing of air inlet and air outlet through first controllable louver and second controllable louver, the multiple gas sensing module is equipped in measurement gas chamber bin, the MCU, auxiliary power module, bluetooth module are arranged in circuit control chamber, the MCU is electrically connected with bluetooth module, multiple gas sensing module, first controllable louver, second controllable louver and auxiliary power module, the auxiliary power module is electrically connected with first controllable louver, second controllable louver, the auxiliary power module is connected with commercial power through power interface.

[0007] Preferably, the air inlet and the air outlet are arranged on opposite sides of the side wall of the measurement gas chamber bin.

[0008] Preferably, the air inlet is further provided with a fan to facilitate the inflow of external gas into the measurement gas chamber through the air inlet, the fan is electrically connected with the auxiliary power module, and the fan is electrically connected with the MCU.

[0009] Preferably, the circuit control chamber is further provided with a 485 communication module, and the 485 communication module is electrically connected with the MCU, so as to connect and communicate with an external host computer through the 485 interface of the 485 communication module.

[0010] Preferably, the device is further provided with a power indicator light to display the power supply condition.

[0011] Preferably, the multiple gas sensing module includes 16 groups of gas sensors, and the 16 groups of gas sensors are specifically: tin oxide gas sensor, zinc oxide gas sensor, titanium dioxide gas sensor, tungsten trioxide gas sensor, indium oxide gas sensor, iron oxide gas sensor, dichromic anhydride gas sensor, magnesium oxide gas sensor, iridium dioxide gas sensor, cobalt oxide gas sensor, nickel oxide gas sensor, palladium oxide gas sensor, molybdenum oxide gas sensor, vanadium oxide gas sensor, niobium oxide gas sensor and antimony oxide gas sensor.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] This invention employs multiple sets of different gas sensors to collect gas data within the cable trench, taking into account the interference between different gases and performing full-feature acquisition. This provides more comprehensive gas data to improve the accuracy of subsequent determination of the presence of small animals. While communicating via Bluetooth, this invention also reserves a 485 communication module interface, which can be selected according to actual needs, accommodating data transmission between different communication distances. Attached Figure Description

[0014] Fig. 1 This is a schematic diagram of the structure of this utility model;

[0015] Fig. 2 This is a schematic diagram of the structure of a 16-group gas sensor matrix module in one embodiment of this utility model;

[0016] Fig. 3 Circuit connection diagram of this utility model.

[0017] Figure label:

[0018] 1-Circuit control room, 2-Power indicator light, 3-485 interface, 4-First controllable louver, 5-Measuring air chamber, 6-Second controllable louver. Detailed Implementation

[0019] The following is in conjunction with the appendix Figs. 1-3 The technical solution of this utility model will be described in detail below.

[0020] This utility model discloses a small animal detection sensing device for cable trenches, comprising a circuit control chamber 1 and a measuring gas chamber 5. An air inlet and an air outlet are respectively provided on the side wall of the measuring gas chamber. A first controllable louver 4 is provided at the air inlet, and a second controllable louver 6 is provided at the air outlet, allowing the air inlet and outlet to be opened and closed via the first and second controllable louvers 4 and 6. A multi-gas sensing module is provided inside the measuring gas chamber. An MCU, an auxiliary power module, and a Bluetooth module are provided inside the circuit control chamber. The MCU is electrically connected to the Bluetooth module, the multi-gas sensing module, the first and second controllable louvers, and the auxiliary power module. The auxiliary power module is electrically connected to the first and second controllable louvers and is connected to mains power via a power interface.

[0021] The circuit control room 1 and the measuring gas chamber 5 are airtight with sealant; Bluetooth is used to communicate with the external host computer, avoiding wiring problems.

[0022] In the embodiment, the air inlet and the air outlet are arranged on the opposite sides of the side wall of the measuring gas chamber. A fan is arranged at the air inlet to facilitate the external gas to flow into the measuring gas chamber through the air inlet, so as to realize the gas renewal in the measuring gas chamber. The fan is electrically connected with the auxiliary power supply module and the MCU.

[0023] The AC power supply is a 220V AC power supply, which is converted in voltage by the auxiliary power supply, and is used to supply power to the fan, the first controllable louver and the second controllable louver, and to supply power to the MCU chip. The start and stop signals of the fan, the first controllable louver and the second controllable louver are given by the MCU.

[0024] In the embodiment, the circuit control chamber is also provided with a 485 communication module, which is electrically connected with the MCU, and is connected with and communicates with the external host computer through the 485 interface of the 485 communication module. The 485 communication module can realize long-distance transmission.

[0025] In the embodiment, the device is also provided with a power indicator 2 to display the power supply condition.

[0026] In the embodiment, the multi-gas sensing module includes 16 groups of gas sensors, which are specifically tin oxide gas sensors, zinc oxide gas sensors, titanium dioxide gas sensors, tungsten trioxide gas sensors, indium oxide gas sensors, iron oxide gas sensors, dichromic anhydride gas sensors, magnesium oxide gas sensors, iridium dioxide gas sensors, cobalt oxide gas sensors, nickel oxide gas sensors, palladium oxide gas sensors, molybdenum oxide gas sensors, vanadium oxide gas sensors, niobium oxide gas sensors and antimony oxide gas sensors.

[0027] As Fig. 3 , the 16 groups of gas sensors are uniformly dispersed on the circuit board to form 16 groups of gas sensor matrix modules. The 16 kinds of semiconductor materials can adsorb gas molecules or react with them to cause changes in electrical conductivity, volt-ampere characteristics or surface potential.

[0028] Working principle:

[0029] After the MCU receives the start command issued by the external host computer, the first controllable louver 4, the second controllable louver 6 and the fan are opened. The gas in the cable trench is blown into the measuring gas chamber 5 through the fan, the 16 groups of gas sensors in the measuring gas chamber 5 produce electrochemical response and obtain 16 groups of gas data with time characteristics after AD sampling, and the MCU transmits the obtained gas data to the external host computer through the Bluetooth module or the 485 communication module.

[0030] The above is the preferred embodiment of the present application, any change made according to the technical scheme of the present application, as long as the functional effect generated does not exceed the scope of the technical scheme of the present application, belongs to the protection scope of the present application.

Claims

1. A cable trench small animal detection sensor apparatus, characterized by, The application relates to a multi-gas sensor device, which comprises a circuit control chamber and a measuring gas chamber bin; a gas inlet and a gas outlet are respectively arranged on the side wall of the measuring gas chamber bin, a first controllable louver is arranged at the gas inlet, a second controllable louver is arranged at the gas outlet, the opening and closing of the gas inlet and the gas outlet are realized through the first controllable louver and the second controllable louver; a multi-gas sensing module is arranged in the measuring gas chamber bin; an MCU, an auxiliary power module and a Bluetooth module are arranged in the circuit control chamber; the MCU is electrically connected with the Bluetooth module, the multi-gas sensing module, the first controllable louver, the second controllable louver and the auxiliary power module; the auxiliary power module is electrically connected with the first controllable louver and the second controllable louver, and the auxiliary power module is connected with a commercial power supply through a power supply interface.

2. A cable trench small animal detection sensor apparatus according to claim 1, wherein, The gas inlet and the gas outlet are arranged on the opposite sides of the side wall of the measuring gas chamber bin.

3. A cable trench small animal detection sensor apparatus according to claim 1, wherein, A fan is further arranged at the gas inlet to facilitate the inflow of external gas into the measuring gas chamber bin through the gas inlet; the fan is electrically connected with the auxiliary power module and the MCU.

4. A cable trench small animal detection sensor apparatus according to claim 1, wherein, A 485 communication module is further arranged in the circuit control chamber, and the 485 communication module is electrically connected with the MCU to realize the connection and communication with an external host computer through the 485 interface of the 485 communication module.

5. A cable trench small animal detection sensor apparatus according to claim 1, wherein, A power indicator is further arranged on the device to display the power supply condition.

6. A cable trench small animal detection sensor apparatus according to claim 1, wherein, The multi-gas sensing module comprises 16 groups of gas sensors, which are specifically tin oxide gas sensors, zinc oxide gas sensors, titanium dioxide gas sensors, tungsten trioxide gas sensors, indium oxide gas sensors, iron oxide gas sensors, dichromic trioxide gas sensors, magnesium oxide gas sensors, iridium dioxide gas sensors, cobalt oxide gas sensors, nickel oxide gas sensors, palladium oxide gas sensors, molybdenum oxide gas sensors, vanadium oxide gas sensors, niobium oxide gas sensors and antimony oxide gas sensors.

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