CN114870314A - Fire extinguisher pressure gauge, fire extinguisher management system and management method - Google Patents

Abstract

The invention discloses a fire extinguisher pressure gauge, a fire extinguisher management system and a management method, which include a base with a dial, the dial is provided with normal and abnormal pressure areas, and a center position on the upper side of the base is provided with a pressure change according to the pressure change in the fire extinguisher bottle. A rotating pressure pointer, one side of the pressure pointer is provided with a metal swinging piece, one end of the metal swinging piece is hingedly arranged with the base, and the other end of the metal swinging piece forms a trigger end that can touch the pressure pointer, and The trigger end is located at the initial end of the abnormal pressure area, and an elastic member for reset is provided between the metal swinging member and the base. Through the design of the metal oscillating piece (the reset elastic tension is less than the rebound force of the pressure pointer, which can rotate with the rotation of the pressure pointer, when the pressure pointer is in contact with the metal oscillating piece, it can realize the under-pressure alarm, and at the same time, it can continue to drive the metal oscillating piece. Real-time air pressure parameter indication within the underpressure range can realize the safety alarm of fire extinguisher underpressure and the function of filling safety during recycling.

Description

Fire extinguisher pressure gauge, fire extinguisher management system and management method

technical field

The invention specifically relates to a fire extinguisher pressure gauge, a fire extinguisher management system and a management method.

Background technique

Fire extinguishers are common fire-fighting equipment and are generally placed in designated locations in buildings. Fire extinguishers usually have a pressure gauge to indicate the pressure state inside the extinguisher. According to fire regulations, managers need to conduct regular inspections of fire extinguishers. In addition to whether the pressure value meets the standard, the inspection content also includes whether the fire extinguisher has expired, whether it is placed in a specified location, and whether it has been sprayed. However, due to the large number and loose distribution of fire extinguishers, and the need to manually record various information such as the inspection date and fire extinguisher pressure during inspection, the workload is large, and it is prone to missed inspections or registration errors.

Moreover, at present, the fire extinguisher pressure gauge in the society has not been updated for decades. When the pressure of the fire extinguisher is too low or there is no pressure, everyone does not know whether there is pressure or not. The pressure gauge can only be marked on the dial and the pointer can be displayed on the area, and there is no warning information. If the fire extinguisher cannot be used normally, it will affect the best period of fire fighting, resulting in personal safety, property and other losses. The social impact is huge.

However, some existing fire extinguisher pressure gauges with alarm function use the pointer to touch the metal column set at the alarm line, and then contact to alarm, but because the metal column limits the re-rotation of the pointer, it cannot reflect the remaining pressure value, and the residual pressure may still be usable in an emergency, or the residual pressure may cause a hazard when the fire extinguisher is disposed of.

Therefore, how to efficiently manage and inspect fire extinguishers needs to be solved urgently.

SUMMARY OF THE INVENTION

In view of the deficiencies in the prior art, the purpose of the present invention is to provide a fire extinguisher pressure gauge, a fire extinguisher management system and a management method.

For achieving the above object, the present invention provides the following technical solutions:

A fire extinguisher pressure gauge includes a base with a dial, a transparent cover matching the upper side of the base is arranged, a cavity is formed between the transparent cover and the base, an air hole is arranged in the center of the upper side of the base, and the A connecting pipe is fixed on the lower side of the base at the corresponding position of the air hole. The connecting pipe is provided with an air channel which communicates with the air hole along the axis direction. The other end of the connecting pipe is connected with the air outlet of the fire extinguisher. In normal and abnormal areas, a pressure pointer that rotates with the pressure change in the fire extinguisher bottle is arranged at the center of the upper side of the base, and a metal swinging piece is arranged on one side of the pressure pointer, and one end of the metal swinging piece is hinged to the base. , the other end of the metal swinging piece forms a triggering end that can touch the pressure pointer, and the triggering end is located at the initial end of the abnormal pressure area, an elastic piece for reset is arranged between the metal swinging piece and the base, The pressure pointer has a first state in which it rotates and touches the trigger end of the metal pendulum to output an abnormal signal, and a second state in which it drives the metal pendulum to continue to rotate.

The metal swinging piece is provided with an arc-shaped groove, and the base is correspondingly provided with a positioning pin shaft, and the positioning pin shaft is embedded in the arc-shaped groove.

The hinged end of the pressure pointer is provided with a first conductive member, the hinged end of the metal swinging member is provided with a second conductive member, and when the pressure pointer is in contact with the metal swinging member, the first conductive member and the second conductive member form a loop between them.

The ratio of the distance between the positioning pin shaft and the hinge shaft of the metal swinging member and the distance between the hinge shaft of the metal swinging member and the connection point of the elastic member is 14:1.

A fire extinguisher management system comprising:

Several wireless alarm devices and the fire extinguisher pressure gauge according to any one of claims 1 to 4, the wireless alarm device and the fire extinguisher pressure gauge are respectively fixedly connected with the fire extinguisher, and the fire extinguisher pressure gauge is connected to the corresponding air outlet of the fire extinguisher Connect, and get the pressure value of the current fire extinguisher;

The data processing platform is used to save the data of the wireless alarm device and the pressure gauge of the fire extinguisher, generate and distribute the configuration data including the communication link, and submit the abnormal state alarm to the user;

The data concentrator is wirelessly connected to the wireless alarm device and the data processing platform respectively, and includes an address allocation unit for acquiring configuration data sent by the data processing platform, and assigning addresses to the wireless alarm device according to the configuration data.

The wireless alarm device includes:

control chip;

Several detection modules are connected with the control chip, which are respectively connected with the output end of the fire extinguisher pressure gauge and the sensor, and are used to obtain the detection information of the current wireless alarm device;

The wireless module is connected to the control chip for receiving or sending data.

A management method based on the above-mentioned fire extinguisher management system, characterized in that: the management method includes an automatic address assignment method and an automatic inspection control method, and the automatic address assignment method includes the following steps:

1) Place the node equipment in the position to be installed, and enter the factory number and placement location of the node on the data processing platform. The node equipment is a pair of wireless alarm devices and fire extinguisher pressure gauges;

2) After the placement of all node devices is completed, the node device address allocation operation is performed, the communication target node of each node is set on the data processing platform, and the configuration data including the communication data link is generated;

3) After completing the node address allocation operation, the data processing platform sends the configuration data to the data concentrator, and the data concentrator sends it to the nearby node devices by broadcasting, and the node devices that receive the configuration data identify themselves according to their own The code obtains its own corresponding address information, and allocates its own address. After completing its own address allocation, it re-broadcasts the configuration data with its own address removed to the nearby node devices, and completes the address allocation of all node devices. After the address is allocated, all node devices enter the sleep state,

The automatic inspection control method includes the following steps:

1) All node devices wake up from the sleep state by themselves within the set period and perform self-check;

2) According to the configuration data of the communication link saved in the node device, after confirming that it is the last bit of the current communication connection link, it sends its own status data by broadcasting;

3) After receiving the status data of other node devices, the remaining node devices add their own status data on the basis of the original data, and then send it in the form of broadcast. Repeat the above operations until the data is transmitted to the data concentrator, and the data The concentrator is transmitted to the data processing platform, so far, the self-checking process of all node devices is completed;

The data concentrator receives the configuration data of the data processing platform, and in the form of broadcast, continuously sends the configuration data including the address information of n nodes at a certain interval;

One of the node devices receives the configuration data sent by the data concentrator, obtains its own configuration data according to the unique hardware identifier, and then continuously sends the configuration data containing the address information of n-1 node devices in the form of broadcast at certain intervals;

At the same time, the data concentrator receives the configuration data containing n-1 node device address information, and stops sending the configuration data containing n node device address information;

Until the last node device receives the configuration data with only its own address information, and then sends the configured data packets to the previous node device in turn, until the data concentrator receives the configured data packets and completes the address allocation.

All node devices wake up from the sleep state by themselves within the set period and perform self-check;

According to the communication link configuration data saved in the node device, compare whether it is in the last position of the communication data link in the current automatic inspection,

If so, send its own status data by broadcasting,

If not, wait for the data of the previous node. If the waiting data arrives, add its own status data on the basis of the received data, and then send it by broadcasting; if the waiting data does not arrive, until the waiting time is exceeded, but there are If the data before the previous node is received, the received data will be added with its own status data, and then sent by broadcast; if no data is received from other nodes until the waiting time is exceeded, its own status will be sent by broadcast. data;

Until the data is transmitted to the data concentrator, and then transmitted to the data processing platform through the data concentrator.

If the nth node device fails, the n-1th node device waits longer than the preset waiting time after receiving the status data sent by the n+1th node device, and does not receive the nth node device. The status data sent by the device, the n-1th node device adds its own status data on the basis of the received data, and then sends it by broadcasting, and marks the status of the nth node device as fault in the sent data. .

Beneficial effects of the present invention: through the design that the metal swinging piece (reset elastic tension is less than the pressure pointer resilience) can rotate with the pressure pointer, when the pressure pointer is in contact with the metal swinging piece, it can realize the undervoltage alarm, and at the same time it also It can continue to drive the metal swinging parts to perform real-time air pressure parameter indication within the underpressure range, which can realize the safety alarm of fire extinguisher underpressure and the function of inflation safety during recycling. In addition, wireless connection is used to realize the address of the pressure gauge of the fire extinguisher. Automatic distribution and automatic inspection can regularly provide information on the undervoltage of the fire extinguisher, prevent the fire extinguisher from undervoltage and sick service, and eliminate the potential safety hazard for users.

Description of drawings

Fig. 1 is a use state diagram of the present invention.

FIG. 2 is a schematic structural diagram of the fire extinguisher pressure gauge of the present invention.

Figure 3 is a side view of the fire extinguisher pressure gauge of the present invention.

FIG. 4 is a schematic structural diagram of the metal swinging member of the present invention.

FIG. 5 is a schematic block diagram of the fire extinguisher management system of the present invention.

FIG. 6 is an example diagram of an ad hoc network node of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relationship between various components under a certain posture (as shown in the accompanying drawings). The relative positional relationship, the movement situation, etc., if the specific posture changes, the directional indication also changes accordingly.

In the present invention, unless otherwise expressly specified and limited, the terms "connected", "fixed" and the like should be understood in a broad sense, for example, "fixed" may be a fixed connection, a detachable connection, or an integrated; It can be a mechanical connection or a connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be an internal communication between two elements or an interaction relationship between the two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

As shown in the figure, the present invention discloses a fire extinguisher pressure gauge 2, which includes a base 21 with a dial 22, the upper side of the base is provided with a matching transparent cover, and the gap between the transparent cover and the base forms a cavity , the center of the base is provided with an air hole, and a connecting pipe 26 is fixed on the lower side of the base corresponding to the air hole. The other end of the pipe 26 is arranged in communication with the air outlet of the fire extinguisher 1, the dial 22 is provided with an abnormal pressure area, and the center position on the upper side of the base is provided with a pressure pointer 23 for rotating according to the pressure in the fire extinguisher bottle. There is a metal swinging piece 24 on one side of the metal swinging piece, one end of the metal swinging piece is hinged to the base, and the other end of the metal swinging piece forms a trigger end that can touch the pressure pointer, and the trigger end is located in the abnormal pressure At the initial end of the area, an elastic member 25 for reset is arranged between the metal swinging member and the base. The pressure pointer has a first state in which it rotates and touches the trigger end of the metal swinging member to output an abnormal signal and drives the metal swinging member. Continue the second state of rotation.

The elastic member is a tension spring, one end of which is fixed to the base, and the other end is hooked on the hook portion 243 at the bottom of the metal swinging member to provide the restoring force of the metal swinging member.

The metal pendulum is a metal pendulum or metal wire hinged at one end, which can contact with the pressure pointer to form a loop, and can also continue to rotate under the driving of the pressure pointer, without affecting the display of low pressure values.

The pressure pointer is made of metal, and consists of a spiral sheet air pressure sensing element and a pointer. The spiral sheet air pressure sensing element rotates counterclockwise from the inside to the outside; when the pressure is applied, the gap between the adjacent spiral sheets increases. large, so that the outermost spiral sheet moves clockwise, thereby driving the pointer to move to the right. The metal pendulum can be set movably, and its swing is 12.5°, which is exactly 0-1.0MPa.

The metal swinging member is provided with an arc-shaped groove 242, and the base is correspondingly provided with a positioning pin 28, the positioning pin is embedded in the arc-shaped groove, and the two cooperate to realize the rotation of the metal swinging member At the same time, it also limits the rotation angle of the metal pendulum to prevent it from escaping from the abnormal pressure area.

The hinged end of the pressure pointer is provided with a first conductive member, the hinged end of the metal swinging member is provided with a second conductive member, and when the pressure pointer is in contact with the metal swinging member, the first conductive member and the second conductive member form a loop between them. At the same time, the first conductive member and the second conductive member are connected to the terminal 27 arranged on the lower side of the base, and the terminal is used for connecting with the wireless alarm device and giving the wireless alarm device an alarm trigger signal.

The top 241 of the metal oscillating piece is in the shape of a pointer and is bent perpendicular to the low pressure alarm position of the pressure gauge of the fire extinguisher. When the pressure pointer reaches the low pressure warning position and touches the metal oscillating piece, the two conductive pieces form a closed loop to trigger the alarm, and the conductive piece Wires can be used.

The ratio of the distance A between the positioning pin shaft and the hinge shaft of the metal swinging member and the distance B from the hinge shaft of the metal swinging member to the connection point of the elastic member is 14:1. The two fixed points of the metal pendulum and the pulling point of the tension spring can be regarded as a lever, the A:B is 14:1, and the tension of the micro tension spring is about 1.5-2g, the pressure pointer needs a force of 0.143g at most In fact, the force generated by the pressure pointer after it is lower than the alarm position is about 6g, which is much higher than 0.143g, so the loss of this part can be ignored, so the loss caused by the metal swinging part and the tension spring Does not affect accuracy.

The present invention also provides a fire extinguisher management system, which includes:

Several wireless alarm devices 3 and the above-mentioned fire extinguisher pressure gauge 2, wherein the wireless alarm device and the fire extinguisher pressure gauge are arranged in pairs, and the fire extinguisher pressure gauge is used to detect the pressure of the fire extinguisher and give the wireless alarm device an alarm signal. The device and the pressure gauge of the fire extinguisher are respectively fixedly connected to the fire extinguisher, and the pressure gauge of the fire extinguisher is connected to the air outlet of the corresponding fire extinguisher, and the current pressure value of the fire extinguisher is obtained;

The data processing platform is used to save the data of the wireless alarm device and the pressure gauge of the fire extinguisher, generate and distribute the configuration data including the communication connection link, submit the abnormal state alarm to the user, and set it on the remote terminal or server, including the data processing server, data Storage server, user access interface, support mobile terminal access and setting;

The data processing platform can summarize, store, and analyze the real-time data transmitted by the wireless alarm device, and push it to the corresponding users through terminal devices such as computers and mobile phones. The data content includes the pressure, temperature, installation location, actual location, and alarm of the fire extinguisher. information, power, etc.

The data processing platform can display the location of the device on the map or building map, and when the device alarms, it will actively alert the user, including but not limited to APP push, SMS push and phone voice push. Users can query the historical data of the device on the platform and keep track of the health status of the device. The platform can track the full life cycle of the device, evaluate the device status or remaining life, and push the device that is approaching its end of life to the relevant management personnel for timely compilation. Budget and problem solving.

The data concentrator is wirelessly connected to the wireless alarm device and the data processing platform respectively, and is used to receive various data of the wireless alarm device. After the integration is completed, it can be sent to the data processing platform by wireless means, including:

The address allocation unit is used to obtain the configuration data sent by the data processing platform, and perform address allocation to the wireless alarm device according to the configuration data;

Each wireless alarm device is equipped with a timing unit. After the equipment configuration operation is completed, according to the set inspection time, the wireless automatic alarm device is controlled to perform automatic inspection, and its own status data is broadcast by broadcasting, so as to obtain regular access. Status of each fire extinguisher.

The data concentrator can accept the active inspection instructions sent by the data processing platform, and then broadcast it to all wireless alarm devices to control them to perform self-inspection. Data processing platform.

The wireless alarm device includes:

control chip;

Several detection modules are connected to the control chip, which are respectively connected to the output end of the fire extinguisher pressure gauge and the sensor to obtain the detection information of the current wireless alarm device, such as power detection, temperature detection, humidity detection, position detection, etc.

The wireless module is connected to the control chip for receiving or sending data. The wireless module can be 2.4G, Bluetooth, 433M, LoRa, LoRaWAN, WiFi, GPRS, NB-IoT, ZigBee and other wireless communication modules.

The above printing is arranged on the printed circuit board, and is installed inside the casing. The casing reserves the outlet of the external antenna, and the external antenna can be used to strengthen the signal.

At the same time, the shell adopts a buckle-type installation method, which is buckled on the neck of the fire extinguisher, and can be fixed by screwing on the screw, which is convenient and quick to install.

A battery compartment is reserved on the housing for placing batteries and providing power.

The present invention also provides a management method based on the above-mentioned fire extinguisher management system, the management method includes an automatic address assignment method and an automatic inspection control method, and the automatic address assignment method includes the following steps:

1) Place the node equipment in the position to be installed, and enter the factory number and placement location of the node on the data processing platform. The node equipment is a pair of wireless alarm devices and fire extinguisher pressure gauges;

The equipment installer can freely place the node equipment in the position where it needs to be used, and enter the factory number and placement location of the node on the data processing platform.

The input method can be handwritten CC or by scanning the QR code on the device through the mobile phone.

2) After the placement of all node devices is completed, the node device address allocation operation is performed, the communication target node of each node is set on the data processing platform, and the configuration data including the communication data link is generated; the configuration personnel set each node on the system platform. The upstream node (communication target node) of the node is sufficient. Referring to FIG. 6 , if the upstream node of node 1.1 is node 1.2, the upstream node of node 1.1 can be set as node 1.2.

3) After completing the node address allocation operation, the data processing platform sends the configuration data to the data concentrator, and the data concentrator sends it to the nearby node devices by broadcasting, and the node devices that receive the configuration data identify themselves according to their own The code obtains its own corresponding address information, and allocates its own address. After completing its own address allocation, it re-broadcasts the configuration data with its own address removed to the nearby node devices, and completes the address allocation of all node devices. After the address is allocated, all node devices enter the sleep state.

The device obtains its own configuration data by matching the hardware unique identifier (factory number).

Confirm the address assignment is completed in the following steps:

Suppose there is a data concentrator M, devices E1, E2...E10, a total of 10 devices.

The specific steps to confirm the address assignment are as follows:

1. M receives the configuration data of the data processing platform, and sends the configuration data of E1~E10 continuously at certain intervals in the form of broadcast.

2. E1 receives the configuration data of E1~E10 sent by M, obtains its own configuration data according to the unique hardware identifier, and then continuously sends the configuration data of E2~E10 in the form of broadcast at certain intervals.

M receives the configuration data of E2~E10 and stops sending the configuration data of E1~E10.

3. E2 receives the configuration data of E2~E10 sent by E1, obtains its own configuration data according to the unique hardware identifier, and then continuously sends the configuration data of E3~E10 in the form of broadcast at certain intervals.

E1 receives configuration data from E3 to E10 and stops sending configuration data from E2 to E10.

4. By analogy, until E10 receives configuration data of only E10. Then the E10 sends the configuration complete data packet to the E9. E9 receives the configuration-completed data packet sent by E10, and sends the configuration-completed data packet to E8. And so on until M receives the data packet that the configuration is completed, and at this point, the address assignment is confirmed.

The automatic inspection control method includes the following steps:

1) All node devices wake up from the sleep state by themselves within the set period and perform self-check;

2) According to the configuration data of the communication link saved in the node device, after confirming that it is the last bit of the current communication connection link, it sends its own status data by broadcasting;

3) After receiving the status data of other node devices, the remaining node devices add their own status data on the basis of the original data, and then send it in the form of broadcast. Repeat the above operations until the data is transmitted to the data concentrator, and the data The concentrator transmits to the data processing platform. So far, the self-test process of all node devices is completed;

Suppose there is a data concentrator M, devices E1, E2...E10, a total of 10 devices, and device status data D1, D2...D10, a total of 10 device status data.

The specific steps of automatic inspection are as follows:

1. Within the set period, E1~E10 will wake up from the sleep state by themselves and perform self-check.

E10 is the last bit of the communication link determined during address allocation, so E10 continuously sends its own status data D10 in a broadcast manner.

2. E9 receives D10, and then sends the status data including D9 and D10 by broadcasting. When E10 receives the status data including D9 and D10, it stops sending its own status data D10.

3. E8 receives the status data including D9 and D10, and then sends the status data including D8~D10 by broadcasting. When E9 receives the status data including D8~D10, it stops sending the status data including D9 and D10.

4. By analogy, until the data concentrator M receives the status data including D1~D10, and then sends the integrated complete data to the platform server. ,

If the target node of one of the node devices fails, because the broadcast transmission method is used, the device of the non-target node will also receive the status data sent by its node device, and there will be no failure of a node device. The operation that causes the self-check to continue cannot be performed.

The common node equipment failure situations and processing methods are as follows:

1) The last node fails, that is, E10 failure;

After E9 exceeds the set waiting time and still does not receive the status data sent by E10, E9 will mark E10 as a faulty device, and broadcast the status data of E9 and E10 together, and then follow the normal transmission chain. The road completes the automatic inspection operation.

2) The last multiple node failures,

A normal node, after exceeding the set waiting time, does not receive any status data sent by other devices, then the node marks all the nodes behind its own link as faulty devices, and adds its own status data, together with the status data. It is sent out in the form of broadcast, and then the automatic inspection operation is completed according to the normal transmission link.

As an example, assume that E10 and E9 are currently faulty;

After the node E8 exceeds the set waiting time, it still does not receive the status data sent by E9, nor the status data sent by E10, that is, E8 has not received any status data sent by other devices, then E8 will E9, E10 Mark it as a faulty device, and broadcast the status data of E8, E9, and E10 together, and then complete the automatic inspection operation according to the normal transmission link.

3) Intermediate node failure;

A normal node, after exceeding the set waiting time, does not receive the status data of the previous node in the link, but receives the status data sent by a node behind the link, then the node will not have any status data. All devices are marked as faulty devices, plus their own status data and received status data sent by a node in the rear, and send them together in a broadcast mode, and then complete the automatic inspection operation according to the normal propagation link.

Example assumption 1, such as E5 failure

After E4 exceeds the set waiting time, it still does not receive the status data sent by E5, but receives the status data sent by E6 to E5, then E4 will mark E5 as a faulty device, and the status data of E4, E5 and E6 will be marked. The sent data is sent together in a broadcast mode, and then the automatic inspection operation is completed according to the normal transmission link.

Example assumption 2, such as E5, E6 failure

After E4 exceeds the set waiting time, it still has not received the status data sent by E5, nor has it received the status data sent by E6 to E5, but has received the status data sent by E7 to E6, then E4 will send E5, E6 Mark it as a faulty device, and send the status data of E4, E5, and E6 together with the data sent by E7 in a broadcast mode, and then complete the automatic inspection operation according to the normal transmission link.

Therefore, self-checking is performed in this way. As long as the node device can receive data, no matter how many node devices are damaged, the self-checking operation can be completed.

The embodiment should not be regarded as a limitation of the present invention, but any improvements made based on the spirit of the present invention should fall within the protection scope of the present invention.

Claims (10)

1. A fire extinguisher pressure gauge, comprising a base with a dial, the upper side of the base is provided with a matching transparent cover, the gap between the transparent cover and the base forms a cavity, and the center of the upper side of the base is provided with an air hole , a connecting pipe is fixed on the lower side of the base corresponding to the air hole, the connecting pipe is provided with an air channel that communicates with the air hole along the axis direction, and the other end of the connecting pipe is communicated with the air outlet of the fire extinguisher, and is characterized in that: The dial is provided with normal and abnormal pressure areas, the central position on the upper side of the base is provided with a pressure pointer that rotates with the pressure change in the fire extinguisher bottle, one side of the pressure pointer is provided with a metal swinging piece, and the metal swinging piece is One end is hinged to the base, the other end of the metal swinging piece forms a trigger end that can touch the pressure pointer, and the triggering end is located at the initial end of the abnormal pressure area, and there is a function between the metal swinging piece and the base For the reset elastic element, the pressure pointer has a first state of rotating and contacting the trigger end of the metal swinging element to output an abnormal signal, and a second state of driving the metal swinging element to continue to rotate. 2 . The fire extinguisher pressure gauge according to claim 1 , wherein the metal swinging member is provided with an arc-shaped groove, the base is correspondingly provided with a positioning pin, and the positioning pin is embedded in the inside the arc slot. 3. The fire extinguisher pressure gauge according to claim 1, wherein the hinged end of the pressure pointer is provided with a first conductive member, the hinged end of the metal swinging member is provided with a second conductive member, and the pressure pointer and the When the metal pendulum is in contact, a loop is formed between the first conductive member and the second conductive member. 4 . The fire extinguisher pressure gauge according to claim 2 , wherein the ratio of the distance from the positioning pin to the hinge shaft of the metal swinging member to the distance from the hinge shaft of the metal swinging member to the connection point of the elastic member is 14. 5 . :1. 5. A fire extinguisher management system, characterized in that: it comprises: Several wireless alarm devices and the fire extinguisher pressure gauge according to any one of claims 1 to 4, the wireless alarm device and the fire extinguisher pressure gauge are respectively fixedly connected with the fire extinguisher, and the fire extinguisher pressure gauge is connected to the corresponding air outlet of the fire extinguisher Connect, and get the pressure value of the current fire extinguisher; The data processing platform is used to save the data of the wireless alarm device and the pressure gauge of the fire extinguisher, generate and distribute the configuration data including the communication link, and submit the abnormal state alarm to the user; The data concentrator is wirelessly connected to the wireless alarm device and the data processing platform respectively, and includes an address allocation unit for acquiring configuration data sent by the data processing platform, and assigning addresses to the wireless alarm device according to the configuration data. 6. The fire extinguisher management system according to claim 5, wherein the wireless alarm device comprises: control chip; Several detection modules are connected with the control chip, which are respectively connected with the output end of the fire extinguisher pressure gauge and the sensor, and are used to obtain the detection information of the current wireless alarm device; The wireless module is connected to the control chip for receiving or sending data. 7. A management method based on the fire extinguisher management system according to any one of the preceding claims 5-6, wherein the management method comprises an automatic address assignment method and an automatic inspection control method, and the address automatic assignment method Include the following steps: 1) Place the node equipment in the position to be installed, and enter the factory number and placement location of the node on the data processing platform. The node equipment is a pair of wireless alarm devices and fire extinguisher pressure gauges; 2) After the placement of all node devices is completed, the node device address allocation operation is performed, the communication target node of each node is set on the data processing platform, and the configuration data including the communication data link is generated; 3) After completing the node address allocation operation, the data processing platform sends the configuration data to the data concentrator, and the data concentrator sends it to the nearby node devices by broadcasting, and the node device that receives the configuration data, according to its own identification code Obtain the address information corresponding to itself, and perform address allocation to itself. After completing its own address allocation, it re-broadcasts the configuration data with its own address removed to the nearby node devices, and completes the address allocation of all node devices. After completing the address After the allocation, all node devices enter the sleep state, The automatic inspection control method includes the following steps: 1) All node devices wake up from the sleep state by themselves within the set period and perform self-check; 2) According to the configuration data of the communication link saved in the node device, after confirming that it is the last bit of the current communication connection link, it sends its own status data by broadcasting; 3) After receiving the status data of other node devices, the remaining node devices add their own status data on the basis of the original data, and then send it in the form of broadcast. Repeat the above operations until the data is transmitted to the data concentrator, and the data The concentrator is transmitted to the data processing platform, so far, the self-checking process of all node devices is completed. 8. management method according to claim 7, is characterized in that: The data concentrator receives the configuration data of the data processing platform, and in the form of broadcast, continuously sends the configuration data including the address information of n nodes at a certain interval; One of the node devices receives the configuration data sent by the data concentrator, obtains its own configuration data according to the unique hardware identifier, and then continuously sends the configuration data containing the address information of n-1 node devices in the form of broadcast at certain intervals; At the same time, the data concentrator receives the configuration data containing n-1 node device address information, and stops sending the configuration data containing n node device address information; Until the last node device receives the configuration data with only its own address information, and then sends the configured data packets to the previous node device in turn, until the data concentrator receives the configured data packets and completes the address allocation. 9. management method according to claim 7, is characterized in that: All node devices wake up from the sleep state by themselves within the set period and perform self-check; According to the communication link configuration data saved in the node device, compare whether it is in the last position of the communication data link in the current automatic inspection, If so, send its own status data by broadcasting, If not, wait for the data of the previous node. If the waiting data arrives, add its own status data on the basis of the received data, and then send it by broadcasting; if the waiting data does not arrive, until the waiting time is exceeded, but there are If the data before the previous node is received, the received data will be added with its own status data, and then sent by broadcast; if no data is received from other nodes until the waiting time is exceeded, its own status will be sent by broadcast. data; Until the data is transmitted to the data concentrator, and then transmitted to the data processing platform through the data concentrator. 10. The management method according to claim 7, wherein if the nth node device fails, the n-1th node device waits for the time after receiving the status data sent by the n+1th node device If the preset waiting time exceeds the preset waiting time, and the status data sent by the nth node device is not received, the n-1th node device adds its own status data on the basis of the received data, and then sends it in a broadcast mode. The state of the nth node device is marked as faulty in the sent data.

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