CN204242341U - A kind of multifunctional warning device detected for cable well lid - Google Patents

Abstract

The utility model relates to a multifunctional alarm device for cable well cover detection, which comprises a photoresistor arranged on a cover body, an ultrasonic emitting and receiving device, a float, an alarm and an AVR single-chip microcomputer. The photoresistor, ultrasonic transmitting and receiving device realize the monitoring of the integrity of the cable well cover; use ultrasonic waves to prevent the cable well cover from being stolen at night, and the alarm will be triggered when the reflected wave received by the ultrasonic transmitting and receiving device is abnormal; when water enters the cable well, the float floats up When the time comes, the alarm device will be triggered to notify the staff that there is water in the cable well; the gas-sensitive resistor is used to monitor whether the cable intermediate joint is overloaded; The identification realizes the alarm function, and the alarm signal is sent to the technician through the SMS through the alarm device, so as to realize the rapid detection and location of the fault, so that the operation status of the cable shaft can be controlled at any time.

Description

A multifunctional alarm device for detection of cable manhole cover

technical field

The utility model relates to a multifunctional alarm device for cable well cover detection, which belongs to the technical field of detection and communication.

Background technique

Nowadays, the development of communication is advancing by leaps and bounds. Underground cables are important communication facilities in the field of communication. Cable wells are an indispensable facility for the installation and maintenance of lines in conjunction with underground pipelines.

Existing cable wells are prone to water accumulation and are not easy to be found. The lines exposed to water are prone to accidents such as short circuits, causing potential safety hazards and affecting communication quality. Some cable manhole covers installed in densely populated places such as roads are also prone to displacement or damage. Even due to the relatively high economic value of iron manhole covers, they are also easy to be stolen. Bring loss, and the well without well cover is also very dangerous, it is easy to cause harm to the life and property of pedestrians. In addition, the connectors of the communication lines are easily burnt when the load is too large. If they are not discovered in time, it will not only affect the normal operation of the cable equipment but also easily cause a fire.

How to detect in time when there is water in the well, the well cover shifts or is damaged, and the cable in the well is scorched is particularly important.

Chinese patent CN103031857A provides a method, device and system for manhole cover management. The method includes: detecting whether the manhole cover is stably installed on the wellhead, and outputting a control signal when the manhole cover is not stably installed on the wellhead; The pre-stored identification of the manhole cover generates a detection signal including the identification information of the manhole cover and the information that the manhole cover is not stably installed on the wellhead; and sends the detection signal. Although this patent can realize the monitoring of the position of the well cover, it cannot realize the detection of the water level in the well and the safety detection of the line joint in the well.

Although there are many manhole covers in the prior art that can detect the water level in the well and the position of the harmful gas manhole cover, etc., it has not been found that it can integrate the water level test of the cable well, the operation of the cable head, and the integrity of the cable manhole cover. notification device.

Utility model content

Aiming at the deficiencies of the prior art, the utility model provides a multifunctional alarm device for cable well cover detection.

The technical scheme of the utility model is as follows:

A multifunctional alarm device for cable manhole cover detection is characterized in that: it includes a power supply module, a photoresistor, a gas sensor, an ultrasonic emission and receiving device, a float, an alarm and an AVR microcontroller; the photoresistor, gas sensor , Ultrasonic transmitting and receiving devices are respectively connected with the input end of the AVR single-chip microcomputer, and the alarm is connected with the output end of the AVR single-chip microcomputer; the power supply module is connected with the AVR single-chip microcomputer. When in use, install the multifunctional alarm device described in the utility model on the target cable manhole cover, wherein the photosensitive resistor, ultrasonic emitting and receiving device can monitor the integrity of the cable manhole cover. The resistance generates an alarm signal to trigger the alarm; the ultrasonic wave is used to prevent the theft of the cable well cover at night, and the alarm will be triggered when the reflected wave received by the ultrasonic transmitting and receiving device is abnormal; when the water enters the cable well and the float floats up, the alarm will be triggered; Use the gas sensitive resistor to monitor whether the middle joint of the cable produces smoke due to overload, and then generate an alarm signal to trigger the alarm; the alarm signal collected by the photosensitive resistor, gas sensitive resistor, ultrasonic transmitting and receiving device, and float is sent to the AVR through the input terminal of the AVR microcontroller The central processing unit of the single-chip microcomputer can independently trigger the alarm after being processed and identified by the processor.

Preferably in the present invention, the alarm device further includes a short message transmitting device. The SMS transmitting device sends the alarm signal processed and identified by the AVR single-chip microcomputer to the technical personnel through SMS, so as to realize the rapid detection and location of the fault, and make the operation status of the cable well controllable at any time.

Preferably in the present invention, the alarm device further includes a satellite positioning system. The satellite positioning system in the alarm device can realize real-time tracking of the manhole cover. When the manhole cover is stolen, it not only increases the probability of recovering the manhole cover, but also assists the public security organs in detecting related theft cases.

Preferably in the utility model, the power supply module is a DC power supply module or a solar battery panel; the solar battery panel is installed outside the cable well cover. The solar panel arranged on the outside of the manhole cover can fully improve the utilization rate of solar energy, and further improve the battery life of the alarm device.

The beneficial effects of the utility model are:

1. A multifunctional alarm device for cable well cover detection described in the utility model integrates the water level test in the cable well, the operation of the cable head, and the monitoring of the integrity of the cable well cover. One machine is multi-purpose and has a high degree of integration. It is suitable for today's multi-dimensional information collection and monitoring requirements.

2. The multi-functional alarm device for cable manhole cover detection described in the utility model can send a notification by short message to realize fast, timely and accurate location of the fault.

3. The satellite positioning system in the multifunctional alarm device for cable manhole cover detection described in the utility model can realize real-time tracking of the manhole cover. When the manhole cover is stolen, it not only increases the probability of finding the manhole cover, but also It can assist the public security organs in the detection of related theft cases.

4. In the multifunctional alarm device for cable manhole cover detection described in the utility model, the solar panel installed outside the manhole cover can fully improve the utilization rate of solar energy, and further improve the battery life of the alarm device.

Description of drawings

Fig. 1 is the bottom view structural diagram of the utility model for the multifunctional alarm device of cable manhole cover detection;

Fig. 2 is the circuit structure diagram of the utility model for the multifunctional alarm device of cable manhole cover detection;

Among them, 1. Target cable manhole cover; 2. Photoresistor; 3. Float; 4. Gas-sensitive resistor; 5. Alarm; 6. Ultrasonic emission and receiving device; 7. AVR single-chip microcomputer; system.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and embodiments, but the protection scope of the utility model is not limited thereto.

Example 1:

A multifunctional alarm device for cable manhole cover detection, comprising a solar panel 8, a photoresistor 2, a gas sensor 4, an ultrasonic emission and receiving device 6, a float 3, an alarm 5 and an AVR microcontroller 7; the photoresistor 2, gas sensitive resistor 4, ultrasonic emission and receiving device 6 are connected with AVR single-chip microcomputer 7 input ends respectively, and described alarm 5 is connected with AVR single-chip microcomputer 7 output ends; Described solar panel 8 is connected with AVR single-chip microcomputer 7; The battery board 8 is installed on the outside of the target cable manhole cover 1 . When in use, the multifunctional alarm device described in the utility model is installed on the target cable manhole cover 1, wherein the photosensitive resistor 2 and the ultrasonic emission and receiving device 6 realize the monitoring of the cable manhole cover in good condition. change, the photoresistor 2 generates an alarm signal to trigger the alarm 5; the ultrasonic wave prevents the cable well cover from being stolen at night, and the alarm 5 will be triggered when the reflected wave received by the ultrasonic transmitting and receiving device 6 is abnormal; when water enters the cable well, the float 3 floats up , it will trigger the alarm 5 to notify the staff that there is water accumulation in the cable well; use the gas sensitive resistor 4 to monitor whether the cable intermediate joint produces smoke due to overload, and then generate an alarm signal to trigger the alarm 5; photosensitive resistor 2, ultrasonic emission and reception The alarm signal collected by the device 6 and the float 3 is sent to the central processing unit of the AVR single-chip microcomputer through the input terminal of the AVR single-chip microcomputer, and the alarm can be independently triggered respectively after being processed and identified by the processor; the solar panel installed on the outside of the target cable manhole cover 1 8. It can fully improve the utilization rate of solar energy, and further improve the battery life of the alarm device.

Example 2:

A multifunctional alarm device for cable manhole cover detection, the structure is as described in embodiment 1, the difference is that: the multifunctional alarm device also has a short message transmitting device. The SMS transmitting device sends the alarm signal processed and identified by the AVR single-chip microcomputer 7 to the technical personnel through SMS, so as to realize rapid fault detection and location, and make the operation status of the cable well controllable at any time.

Example 3:

A multifunctional alarm device for cable manhole cover detection, the structure is as described in Embodiment 1, the difference is that: the alarm device also includes a satellite positioning system; the positioning system is connected to a solar panel 8 . The satellite positioning system can realize real-time tracking of the target cable manhole cover 1. When the target cable manhole cover 1 is stolen, it not only increases the probability of recovering the manhole cover, but also assists the public security organs in detecting related theft cases.

Claims (4)

1. a multifunctional alarm device for cable manhole cover detection, is characterized in that: comprise power supply module, photoresistor, gas-sensitive resistor, ultrasonic emission and receiving device, float, alarm and AVR single-chip microcomputer; Described photoresistor, gas-sensitive resistor Sensitive resistors, ultrasonic transmitting and receiving devices are respectively connected to the input end of the AVR single-chip microcomputer, the alarm is connected to the output end of the AVR single-chip microcomputer; the power supply module is connected to the AVR single-chip microcomputer. 2. A multifunctional alarm device for cable manhole cover detection according to claim 1, characterized in that: said alarm device also has a short message transmitting device. 3. A multifunctional alarm device for cable manhole cover detection according to claim 1, characterized in that: the alarm device also includes a satellite positioning system. 4. A multifunctional alarm device for cable manhole cover detection according to any one of claims 1-3, characterized in that: the power module is a DC power module or a solar panel; the solar panel is installed On the outside of the cable manhole cover.