Fire-fighting power supply monitoring device with overload alarm function

Abstract

The utility model provides a fire-fighting power supply monitoring device with an overload alarm function, and relates to the technical field of fire-fighting monitoring systems, the fire-fighting monitoring device is provided with a power supply input conversion circuit, and the main body of the fire-fighting monitoring device comprises a single-chip microcomputer; the single-chip microcomputer is connected with a first liquid crystal display unit, a touch screen, a standby power supply management unit and a buzzer, and the power supply input conversion circuit is connected with the standby power supply management unit on the single-chip microcomputer; the load sensor comprises a second liquid crystal display unit, an operation panel, a fire-fighting linkage unit, an alarm output unit and an infrared coding generating and receiving module which are connected with the single-chip microcomputer. The technical key points are as follows: by virtue of a standby power supply management unit and a power supply input conversion circuit on the fire-fighting device, when the fire-fighting monitoring main body is overloaded, the standby power supply management unit is used for controlling the power supply input conversion circuit to switch a standby power supply to supply power to the fire-fighting equipment system, so that loss caused by system shutdown can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of fire monitoring systems, in particular to a fire power supply monitoring device with an overload alarm function. Background Art

[0002] With the advancement of technology and the improvement of safety requirements, as well as the update and addition of corresponding specification clauses, the electrical profession has added electrical fire monitoring systems, fire door monitoring systems, fire power supply monitoring systems, energy consumption monitoring systems, and equipment monitoring systems. The above systems are independent of each other and require independent wiring and independent control systems, which greatly increases the difficulty of system wiring, equipment power distribution and layout, and the corresponding construction costs are greatly increased. Subsequent specification updates and additions will also add other unknown systems. Subsequent additions should give priority to functional expansion based on existing systems, and correspondingly, existing system wiring and existing system equipment can be used.

[0003] The existing fire power supply monitoring power supply circuit mainly protects electrical equipment by overload power off. However, with the continuous innovation of technology, the equipment is gradually intelligent, and the correlation between various systems is high. When the circuit is protected by overload power off, it is easy to cause greater losses, which greatly increases the cost of equipment use. Utility Model Content

[0004] In order to overcome the disadvantage that the power supply circuit of the existing fire power supply monitoring is highly correlated between various systems, which easily causes greater losses when the circuit is protected by overload power-off, greatly increasing the cost of equipment use. The embodiment of the present application provides a fire power supply monitoring device with an overload alarm function. By arranging a single-chip microcomputer on the main body of the fire monitoring device, with the help of a backup power management unit and a power input conversion circuit on the fire protection device, when the fire monitoring main body is overloaded, the backup power management unit is used to control the power input conversion circuit to switch the backup power supply to power the fire protection equipment system. It can operate with a defect in the case of local overload to ensure fire extinguishing priority.

[0005] The technical solution adopted by the embodiment of the present application to solve the technical problem is:

[0006] A fire power supply monitoring device with an overload alarm function comprises a fire monitoring device body and a load sensor. The fire monitoring device body comprises a single-chip microcomputer, to which a first liquid crystal display unit, a touch screen, a backup power supply management unit, a printer, a buzzer, and an indicator light board are connected. The power input conversion circuit is connected to the backup power supply management unit on the single-chip microcomputer.

[0007] In a possible implementation, the load sensor includes a second liquid crystal display unit connected to the single-chip computer, an operation panel, a fire linkage unit, an alarm output unit, and an infrared code generating and receiving module.

[0008] In a possible implementation, a communication bridge bus is used between the load sensor and the main body of the fire monitoring device for human-computer interactive operation, and the communication bridge includes a CAN bus communication module and a two-bus communication module.

[0009] In a possible implementation, the load sensor further includes a power / communication indicator light, and the alarm output unit is provided with an alarm indicator light.

[0010] In a possible implementation, the load sensor is connected to the main body of the fire monitoring device by means of a power carrier.

[0011] In a possible implementation, a Vref short-circuit fault detection circuit is integrated on the single-chip microcomputer, and the Vref short-circuit fault detection circuit is connected to the main power supply circuit of the fire monitoring device.

[0012] In one possible implementation, a residual pressure controller is provided on the main body of the fire monitoring device, and a fire equipment power supply monitor is arranged in the fire control room to form a network with the load sensor. The overload information at the site is monitored and displayed through the signal uploaded by the overload sensor controller. When the set value is exceeded, an alarm is issued in time and uploaded to the residual pressure controller.

[0013] In summary, the present invention includes at least one of the following beneficial technical effects:

[0014] In this solution, a single-chip microcomputer is set on the main body of the fire monitoring device, with the help of a backup power management unit and a power input conversion circuit on the fire-fighting device. When the fire monitoring main body is overloaded, the backup power management unit controls the power input conversion circuit to switch the backup power supply to power the fire-fighting equipment system. It can operate with a defect in the case of local overload to ensure fire extinguishing priority and avoid the cost caused by equipment downtime. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a power supply circuit diagram of the utility model;

[0016] Figure 2 This is the circuit diagram of the dual bus communication module of the utility model;

[0017] Figure 3 This is a power input conversion circuit diagram of the utility model;

[0018] Figure 4 This is the reference voltage circuit diagram of the utility model;

[0019] Figure 5 This is the circuit diagram of the main chip of the utility model;

[0020] Figure 6 This is a Vref short-circuit fault detection circuit diagram of the utility model;

[0021] Figure 7 This is the reset circuit diagram of the utility model;

[0022] Figure 8 This is the circuit diagram of the download port of the utility model. DETAILED DESCRIPTION

[0023] The technical solution in the embodiment of the present application is to solve the problems of the above-mentioned background technology, and the overall idea is as follows: Example

[0024] This embodiment introduces a specific structure of a fire power supply monitoring device with an overload alarm function. Figure 1-Figure 8 As shown, it includes a fire monitoring device body and a load sensor, the fire monitoring device body includes a single chip microcomputer, the single chip microcomputer is connected with a first liquid crystal display unit, a touch screen, a backup power management unit, a printer, a buzzer, and an indicator light board, and the power input conversion circuit is connected with the backup power management unit on the single chip microcomputer;

[0025] Among them, by using the backup power management unit to work on the main unit where the single chip microcomputer is located, when the main power supply is overloaded, the backup power management unit will switch the main power supply (such as Figure 1 Switch to backup power supply as shown Figure 3 As shown, it is helpful to ensure the safe operation of the power supply monitoring system;

[0026] The load sensor includes a second liquid crystal display unit connected to the single chip computer, an operation panel, a fire linkage unit, an alarm output unit, and an infrared code generation and receiving module;

[0027] Wherein, the load sensor and the fire monitoring device body use a communication bridge bus for human-machine interactive operation, and the communication bridge includes a CAN bus communication module and a second bus communication module (such as Figure 2 As shown), based on the human-computer interaction mode, when in use, the staff can operate on the touch screen through the first liquid crystal display unit, and can also operate on the operation panel through the second liquid crystal display unit;

[0028] Secondly, the load sensor also includes a power supply / communication indicator light. The alarm output unit is provided with an alarm indicator light. When the load sensor is connected to a multi-channel overload switch and collects the alarm information issued by the overload switch, the operating status of the equipment can be collected at the same time. When overload information occurs, the load sensor issues an alarm message and uploads it to the main body of the fire power supply monitoring device. After receiving the alarm message, the main body of the fire power supply monitoring device issues a light alarm prompt through the alarm indicator light and a sound alarm prompt through the buzzer.

[0029] Furthermore, the load sensor is connected to the main body of the fire monitoring device by a power carrier mode, and the single chip microcomputer is integrated with a Vref short circuit fault detection circuit (such as Figure 6 As shown in the figure), by connecting the Vref short-circuit fault detection circuit to the main power supply circuit of the fire monitoring device, the overload condition of the circuit in the fire monitoring system can be detected, which is conducive to 24-hour real-time automatic inspection of the working status of the fire load and giving an alarm prompt for overload information.

[0030] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A fire power supply monitoring device with overload alarm function, It is characterized in that include: Fire monitoring device body; Load sensor; Among them, the fire monitoring device is provided with a power input conversion circuit, the fire monitoring device body includes a single-chip microcomputer, the single-chip microcomputer is connected to a first liquid crystal display unit, a touch screen, a backup power management unit, a printer, a buzzer, and an indicator light board, and the power input conversion circuit is connected to the backup power management unit on the single-chip microcomputer.

2. A fire power supply monitoring device with overload alarm function as claimed in claim 1, Features: The load sensor comprises a second liquid crystal display unit connected with the single chip computer, an operation panel, a fire fighting linkage unit, an alarm output unit, and an infrared coding generation and receiving module.

3. A fire power supply monitoring device with overload alarm function as claimed in claim 1, Features: A communication bridge bus is used between the load sensor and the main body of the fire monitoring device for human-computer interactive operation, and the communication bridge includes a CAN bus communication module and a two-bus communication module.

4. A fire power supply monitoring device with overload alarm function as claimed in claim 1, Features: The load sensor also includes a power supply / communication indicator light, and the alarm output unit is provided with an alarm indicator light.

5. A fire power supply monitoring device with overload alarm function as claimed in claim 1, Features: The load sensor is connected to the main body of the fire monitoring device by means of a power carrier.

6. A fire power supply monitoring device with overload alarm function as claimed in claim 1, Features: The single chip microcomputer is integrated with a Vref short circuit fault detection circuit, and the Vref short circuit fault detection circuit is connected to the main power supply circuit of the fire monitoring device.

7. A fire power supply monitoring device with overload alarm function as claimed in claim 1, Features: The fire monitoring device is provided with a residual pressure controller on its main body, and the fire equipment power supply monitor is arranged in the fire control room, forming a network with the load sensor, and monitoring and displaying the overload information on site through the signal uploaded by the overload sensor controller. When the set value is exceeded, an alarm is issued in time and uploaded to the residual pressure controller.

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