CN201796453U - Bus Type Electrical Fire Monitoring System - Google Patents

Abstract

The utility model discloses a bus-type electric fire hazard monitoring system, which comprises a monitoring equipment and a plurality of bus controllers, wherein, the bus controllers are connected with the monitoring equipment; the bus controllers are connected with a first bus and a second bus; and the first bus and the second bus are connected with a plurality of basic detectors in parallel. The bus controllers and the basic detectors of the bus-type electric fire hazard monitoring system are matched with each other, so that states such as interference, open circuit, short circuit, failure of detected components and the like can be monitored closely, and on-line monitoring can be achieved; warning or prewarning signals are sent out when failure or over limit occurs so as to remind working personnel of eliminating the potential hazard of failure, so that the safety of the system can be ensured; the first bus and the second bus are signal transmission channels and are also power cords at the same time, and the first bus and the second bus are integrated so as to effectively save resources; in addition, a user can conveniently articulate the basic detectors as much as possible according to the needs, so as to ensure that the bus-type electric fire hazard monitoring system can monitor an electrical system roundly.

Description

Bus Type Electrical Fire Monitoring System

technical field

The utility model relates to a safety monitoring system, in particular to a bus type electric fire monitoring system.

Background technique

The commonly used electrical fire monitoring and alarm system consists of a host computer (monitoring host) and detectors, and the detectors can be divided into integrated residual current electrical fire monitoring and alarm detectors and split residual current electrical fire monitoring and alarm detection device. The main differences between the integrated and split detectors are: 1. The former contains a main circuit breaker, while the latter does not; 2. The integrated can detect three currents or one leakage current (need external zero-sequence transformer) and accept external Temperature detectors, smoke detectors and combustible gas detectors, while the split type can accept 8-way current detectors or 8-way zero-sequence current detectors, smoke detectors or temperature detectors; Split is expensive. What they have in common is that the power line and the signal line are independent and incompatible with each other, and the transmission voltage of the power line is 220V. It is not difficult to see from the above description that the inherent shortcomings of the current electrical fire monitoring and alarm system are: 1. There are fewer detectors; 2. The power line and signal line are not compatible, which wastes resources; 3. It takes a lot of cost to build a large-scale system.

Contents of the invention

In order to solve the above problems, the utility model provides a bus-type electrical fire monitoring system with a large number of monitoring detectors, easy expansion, resource saving, and high safety performance.

The technical scheme that the utility model adopts for solving its problem is:

The bus-type electrical fire monitoring system includes monitoring equipment and several bus controllers connected to the monitoring equipment. device.

Wherein, the basic detector includes an intelligent measurement and control unit and several signal detectors connected to the input end of the intelligent measurement and control unit, and the intelligent measurement and control unit is connected to the first bus and the second bus in parallel.

Further, the bus controller is connected with the monitoring equipment through the RS485 bus.

Further, the monitoring equipment is connected to the monitoring center through the CAN bus.

Further, the utility model includes a split detector, and the split detector is connected with monitoring equipment.

Further, the utility model includes an integrated detector, and the integrated detector is connected with monitoring equipment.

Further, the utility model includes an independent controller for realizing fire linkage, and the independent controller is connected with monitoring equipment.

The basic detector of the utility model can detect various parameters of electrical equipment, such as residual current, current and voltage, component temperature, etc., and it transmits collection information to the bus controller through the first bus and the second bus, and accepts control commands , the bus controller is responsible for supplying power to the bus, completing the receiving and sending of signals, monitoring the status of the bus, processing the electrical parameters collected by the basic detectors, and transmitting the collected information to the monitoring equipment. According to the above working method, the bus controller It can closely monitor the status of interference, open circuit, short circuit, and detection of component failures, realize online monitoring, and send out alarm or early warning signals when faults or overruns occur, reminding staff to eliminate hidden faults and ensure system safety; the connection structure of the basic system can be seen, The first bus and the second bus are both information transmission channels and power lines. The power line and the signal transmission line are combined into one, which can effectively save resources; the basic detectors are respectively connected to the first bus and the second bus. , the user can easily connect as many basic detectors as needed to ensure that the monitoring system can fully monitor the electrical system, especially when there are multiple bus controllers, the system can detect The number of detectors can be further expanded, so that a large-scale monitoring system can be built at a very low cost. To sum up, the bus-type electrical fire monitoring system has high technical and economic benefits and has more market potential.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Fig. 1 is a system connection block diagram of the present utility model;

Fig. 2 is a component structure diagram of the monitoring equipment of the present invention.

Detailed ways

With reference to Fig. 1, the bus type electrical fire monitoring system of the present utility model comprises monitoring equipment 1 and several bus controllers 2 connected with monitoring equipment 1, and described bus controller 2 is connected with first bus 3 and second bus 4, Several basic detectors 5 are connected in parallel on the first bus 3 and the second bus 4 . The basic detector 5 can detect various parameters of electrical equipment, such as residual current, current and voltage, component temperature, etc., and it transmits collection information to the bus controller 2 through the first bus 3 and the second bus 4, and accepts control Order. The bus controller 2 is responsible for providing power to the buses 3 and 4, completing signal receiving and sending, monitoring the status of the buses 3 and 4, processing the electrical parameters collected by the basic detector 5, and transmitting the collected information to the monitoring device 1. The monitoring device 1 is responsible for collecting the information collected by the bus controller 2. When the alarm signal arrives, it sends out sound and light alarm signals and control signals, indicates the alarm location, records and saves the information. In order to save system cost, the bus controller 2 and the monitoring device 1 are often assembled together, but in a larger electrical fire monitoring system, the two devices can also be installed in different positions.

The first bus 3 and the second bus 4 are both power supply lines and channels for information transmission. They generally use 18V-24V voltage, and the longest connection distance can reach 1000m without relays. The basic detectors are connected in parallel. The system can be connected to the bus, and the capacity can support dozens. In addition, the system can also be expanded by installing multiple bus controllers 2. In this case, the monitoring system supports more monitoring detectors. , the monitoring function is more perfect.

In actual products, the basic detector 5 generally includes an intelligent measurement and control unit 6 and a number of signal detectors 7 connected to the input end of the intelligent measurement and control unit 6, and the intelligent measurement and control unit 6 is respectively connected to the first bus 3 and the second bus 4 In the above, the type of the signal detector 7 can be set according to the type of the detection signal, and the intelligent measurement and control unit 6 is equipped with a measurement and control unit corresponding to the type of the signal detector 7, which can be used for the detection signal of the signal detector 7. Pre-processing to ensure that its output signal can be transmitted via bus 3 and 4.

For better communication between the bus controller 2 and the monitoring device 1 , the bus controller 2 is preferably connected to the monitoring device 1 through the RS485 bus 8 . At this time, the monitoring device 1 is provided with an RS485 bus processor, as shown in the structure diagram of the monitoring device components in FIG. 2 , the RS485 bus processor can process multiple inputs.

The monitoring system of the utility model can also be used in a network with existing detector products to make its functions more powerful. connect. This setting ensures that the monitoring system has good compatibility. Of course, in order to realize the fire-fighting linkage function, the utility model can also include an independent controller 13, which is connected with the monitoring equipment 1. The controller is provided with devices such as a liquid crystal screen and buttons, which can carry out sound and light alarms, and The fault point can be located in time and recorded well. The above split detector 11, integrated detector 12 and independent controller 13 are generally intelligent electrical monitoring products based on RS485 communication mode, and they are generally connected to monitoring equipment 1 through RS485 communication mode.

In addition, if it is a larger system, the monitoring device 1 can be further connected with the monitoring center 10 through the CAN bus 9, and the monitoring center can simultaneously form a larger-scale system with multiple groups of monitoring devices, and utilize the powerful functions of the computer to make Work at a higher level of intelligence. At this time, the monitoring device 1 is provided with a CAN bus processor, as shown in the structure diagram of the monitoring device components in FIG. 2 .

Continuing to refer to Fig. 2, the monitoring equipment also includes a liquid crystal display, an LED indicator, a button, an expansion memory, an alarm extension equipment, a power supply and a backup power supply device, etc. Functions such as remote review of records, manual or automatic cut-off of electrical equipment monitored by fault detectors, etc.

Of course, in addition to the above-mentioned embodiments of the present invention, other equivalent solutions should also be within the scope of protection.

Claims (7)

1. bus type electric fire monitoring system, it is characterized in that comprising watch-dog (1) and the some bus controllers (2) that are connected with watch-dog (1), described bus controller (2) is connected with first bus (3) and second bus (4), and first bus (3) and second bus (4) go up and be connected to some basic detectors (5).

2. bus type electric fire monitoring system according to claim 1, it is characterized in that described basic detector (5) comprises intelligent measurement and control unit (6) and the some signal sensors (7) that are connected with intelligent measurement and control unit (6) input end, described intelligent measurement and control unit (6) is connected on first bus (3) and second bus (4).

3. bus type electric fire monitoring system according to claim 1 is characterized in that described bus controller (2) is connected with watch-dog (1) by RS485 bus (8).

4. bus type electric fire monitoring system according to claim 1 is characterized in that described watch-dog (1) is connected with Surveillance center (10) by CAN bus (9).

5. bus type electric fire monitoring system according to claim 1 is characterized in that comprising split type detector (11), and described split type detector (11) is connected with watch-dog (1).

6. bus type electric fire monitoring system according to claim 1 is characterized in that comprising integral type detector (12), and described integral type detector (12) is connected with watch-dog (1).

7. bus type electric fire monitoring system according to claim 1 is characterized in that comprising the independent control (13) that is used to realize fire-fighting link, and described independent control (13) is connected with watch-dog (1).

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