CN104699054A - Substation worker safety monitoring system and method - Google Patents

Abstract

The invention discloses a substation personnel safety monitoring system, which includes at least one Zigbee tag, each Zigbee tag corresponds to a staff member, and the Zigbee tag stores the identity information of the corresponding staff member and the ID information of the equipment with operation authority of the staff member; At least one Zigbee child node, each Zigbee child node is installed on a corresponding device, and the Zigbee child node stores the ID information of the device; at least one Zigbee coordinator, a buzzer, the buzzer is connected to the Zigbee coordinator, remote monitoring Center. The invention also discloses a monitoring method of the substation personnel safety monitoring system. The invention does not need to add a large number of other software and hardware facilities, and is low in cost and easy to implement; it has low requirements on hardware and low cost, and the use of Zigbee in the substation for data transmission has the characteristics of low power consumption, high reliability, simple installation, easy expansion, and stability. .

Description

Substation personnel safety monitoring system and its monitoring method

technical field

The invention relates to Zigbee wireless communication technology, GPRS technology, and the corresponding software and hardware development fields, in particular to a substation personnel safety monitoring system and a monitoring method thereof.

Background technique

With the expansion of the grid scale and the improvement of equipment automation, fewer and fewer workers are assigned to each substation. In addition, the substation is a high-risk work area, so the safety of the staff is particularly important. Now, many substations have their own monitoring and management systems, but they cannot locate the on-site staff and track their movement in the substation. If they stray into a dangerous area, it is too late to call the police to remind them to keep a safe distance. For some special or high-voltage Dangerous equipment has not been set up with corresponding personnel operation authority. Once it is accidentally touched, it will endanger the safety of the staff, and there is a large safety hazard, which cannot guarantee the safety of the staff.

Contents of the invention

The purpose of the present invention is to provide a substation personnel safety monitoring system, which can realize real-time positioning of the substation staff, and can promptly remind the staff and issue an alarm when the staff strays into the high-voltage dangerous area; Monitoring of operating authority of equipment.

Another object of the present invention is to provide a monitoring method for a substation personnel safety monitoring system.

The technical solution of the substation personnel safety monitoring system of the present invention is: a substation personnel safety monitoring system, which includes

At least one Zigbee label, each said Zigbee label corresponds to a staff member, and said Zigbee label stores the identity information of corresponding staff member and the ID information of the equipment that this staff member has operation authority; Described Zigbee label is used for timing and Zigbee coordinator communication;

At least one Zigbee sub-node, each Zigbee sub-node is installed on a corresponding device, and the Zigbee sub-node stores the ID information of the device; the Zigbee sub-node is used to collect the state parameters of the corresponding device; and the The Zigbee child node is used to communicate with the Zigbee coordinator regularly;

At least one Zigbee coordinator, the Zigbee coordinator is installed at a designated installation point; the Zigbee coordinator is used to obtain the information stored in the Zigbee tag and the signal strength value communicated with the Zigbee tag, the Zigbee The information stored in the sub-node and the state parameters of the corresponding equipment collected by the Zigbee sub-node and the signal strength value communicated with the Zigbee sub-node; and the Zigbee coordinator is used to regularly send the obtained information to the remote monitoring Center;

A buzzer, the buzzer is connected to the Zigbee coordinator, and the buzzer is used to receive the alarm signal and the alarm sent by the Zigbee coordinator;

A remote monitoring center, the remote monitoring center is used to receive the information sent to by the Zigbee coordinator; and

Used to locate the specific location of the worker and determine whether the worker has entered the danger zone; and

It is used to measure the distance between the staff and the equipment that the staff is close to, and judge whether the staff has the operation authority to the equipment within the set distance range; and

It is used to send a control instruction to the Zigbee coordinator, and when an enable signal appears, the Zigbee coordinator is used to send an alarm signal to the buzzer.

The technical solution above will be further explained below.

The Zigbee coordinator is provided with 4, and the remote monitoring center locates the position of the staff by the four-point positioning method.

The Zigbee tags include

A control module, for controlling the sending of the information data stored in the Zigbee tag;

A clock module, used to provide the Zigbee tag running clock;

An antenna module, used to enhance the signal strength of wireless communication;

A power module, used to provide power.

The Zigbee child nodes include

At least one sensor module, used to collect state parameters of corresponding equipment;

A control module, for controlling the data acquisition of the sensor module; and controlling the transmission of the data stored by the Zigbee sub-node and the data collected by the sensor module;

A clock module, used to provide the Zigbee sub-node running clock;

An antenna module, used to enhance the signal strength of wireless communication;

A power module, used to provide power.

The Zigbee coordinator includes

A control module, used to control the transmission of the information data obtained by the Zigbee coordinator;

A GPRS module for realizing remote data communication;

A clock module, used to provide the Zigbee coordinator running clock;

An antenna module, used to enhance the signal strength of wireless communication;

A power module, used to provide power.

The control module is a CC2530 chip.

The technical scheme of the monitoring method of the substation personnel safety monitoring system of the present invention is: a substation personnel safety monitoring method, which includes the following steps,

S01: Install each module part;

S02: Store the identity information of the corresponding staff and the ID information of the equipment that the staff has operation authority into the corresponding Zigbee tag; and store the ID information of each equipment in the Zigbee sub-node corresponding to the equipment;

S03: Using the sensor module of the Zigbee sub-node to collect the state parameters of the corresponding equipment;

S04: Utilize the Zigbee child node to transmit the ID information of the corresponding device and the state parameters of the device to the Zigbee coordinator;

S05: Utilize the Zigbee coordinator to receive the information data transmitted by the ZigBee sub-node, and obtain the signal strength value of the communication with the ZigBee sub-node, and transmit the above-mentioned received or obtained information to the remote monitoring center;

S06: The remote monitoring center locates each device;

S07: When the staff carrying the corresponding Zigbee tag enters the monitoring area, the Zigbee tag sends the stored information data in the Zigbee tag to the Zigbee coordinator;

S08: The Zigbee coordinator receives the information data transmitted by the ZigBee tag, and obtains the signal strength value of the communication with the ZigBee tag, and transmits the received or obtained information to the remote monitoring center;

S09: The remote monitoring center locates the staff to detect the real-time position of the staff, and judge whether the staff is in a safe state; and send corresponding signal instructions;

S10: The remote monitoring center judges the operating authority of the staff, and makes corresponding signal instructions.

Above-mentioned technical scheme is further explained below:

Described step S09 comprises the following steps:

S091: The remote monitoring center locates the staff in real time through a four-point positioning method;

S092: The remote monitoring center judges whether the staff is in the safe area; if in the safe area, return to step S091; if not in the safe area, then enter step S093;

S093: The remote monitoring center sends an alarm signal to the Zigbee coordinator, and the Zigbee coordinator turns on a buzzer to issue an alarm after receiving the alarm instruction enabling signal.

The step S10 includes the following steps:

S101: When the staff is close to a device, the remote monitoring center calculates the distance between the staff and the close equipment according to the signal strength value uploaded by the ZigBee coordinator;

S102: The remote monitoring center judges the distance between the staff and the approaching equipment, if the distance is greater than the set distance value, then return to step S101; if the distance is less than the set distance value, then enter step S103;

S103: The remote monitoring center judges the operation authority of the equipment approached by the staff, if the staff has the operation authority for the equipment approached, return to step S101; if the staff does not have the operation authority for the equipment approached operation authority, enter step S104;

S104: The remote monitoring center sends an alarm signal to the Zigbee coordinator, and the Zigbee coordinator turns on a buzzer to issue an alarm after receiving the alarm instruction enabling signal.

The advantages of the present invention are: the substation personnel safety monitoring system and its monitoring method of the present invention integrate the substation personnel safety management with the substation wireless data monitoring system, and carry out monitoring through the original wireless sensor network for on-line monitoring Substation personnel safety management does not need to add a large number of other software and hardware facilities, which is low cost and easy to implement; corresponding personnel operation authority is set for the equipment that specific staff can operate to prevent misoperation or maintenance of inoperable equipment from causing safety hazards Accident; Zigbee-based RSSI four-point positioning technology is adopted, which has low hardware requirements and low cost. Using Zigbee for data transmission in substations has the characteristics of low power consumption, high reliability, simple installation, easy expansion, and stability.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

FIG. 1 is a schematic diagram of modules of an embodiment of the present invention.

Fig. 2 is a schematic diagram of the application of the embodiment of the present invention.

Fig. 3 is a schematic diagram of a Zigbee tag module according to an embodiment of the present invention.

FIG. 4 is a schematic diagram of a Zigbee sub-node module in an embodiment of the present invention.

FIG. 5 is a schematic diagram of a Zigbee coordinator module according to an embodiment of the present invention.

Fig. 6 is a flow chart of the overall steps of implementing monitoring in the embodiment of the present invention.

Fig. 7 is a flow chart of monitoring steps for workers entering a dangerous area according to an embodiment of the present invention.

Fig. 8 is a flow chart of the monitoring steps of the operating authority of the staff on the equipment they are close to according to the embodiment of the present invention.

Among them: 1 Zigbee tag; 2 Zigbee child nodes; 3 Zigbee coordinator; 4 buzzer; 5 remote monitoring center; 6 control module; 7 clock module; 8 antenna module; 9 power module; 10 sensor module; 11 GPRS module.

Detailed ways

Embodiment 1: as shown in Figure 1, a kind of substation personnel safety monitoring system, it comprises at least one Zigbee tag 1, at least one Zigbee child node 2, at least one Zigbee coordinator 3, a buzzer 4 and a remote monitoring center 5.

As shown in Figure 3, Zigbee tag 1 includes the following modules.

A control module 6 is used for controlling the sending of the information data stored in the Zigbee tag 1 .

A clock module 7 is used to provide the Zigbee tag 1 with an operating clock.

An antenna module 8 is used to enhance the signal strength of wireless communication.

A power supply module 9 is used to provide power supply to the Zigbee tag 1 .

Each Zigbee label 1 corresponds to a staff member, and the Zigbee label 1 stores the identity information of the corresponding staff member and the ID information of the equipment that the staff member has operation authority; Zigbee label 1 is used to communicate with the Zigbee coordinator 3 regularly.

As shown in Figure 4, Zigbee child node 2 includes the following modules.

At least one sensor module 10 is used to collect state parameters of corresponding equipment.

A control module 6 is used for controlling the data collection of the sensor module 10;

A clock module 7, used to provide Zigbee child node 2 running clock

An antenna module 8, used to enhance the signal strength of wireless communication;

A power module 9 is used to provide power.

Each Zigbee sub-node 2 is installed on a corresponding device, and the Zigbee sub-node 2 stores the ID information of the device; the Zigbee sub-node 2 is used to collect the state parameters of the corresponding device; and the Zigbee sub-node 2 is used for timing and Zigbee coordinator 3 communication.

As shown in Figure 5, the Zigbee coordinator 3 includes the following modules.

A control module 6 is used to control the transmission of the information data obtained by the Zigbee coordinator 3 .

A GPRS module 11 is used to realize remote data communication. The GPRS module 11 sends the data to the remote monitoring center 5, and sends the returned instruction of the monitoring center to the buzzer 4.

A clock module 7 is used to provide the running clock of the Zigbee coordinator 3 .

An antenna module 8 is used to enhance the signal strength of wireless communication.

A power module 9 is used to provide power.

The Zigbee coordinator 3 is installed at the designated installation point; the Zigbee coordinator 3 is used to obtain the information stored in the Zigbee label 1 and the signal strength value of the communication with the Zigbee label 1, the information stored in the Zigbee child node 2 and the Zigbee child node 2 The collected status parameters of the corresponding equipment and the signal strength value communicated with the Zigbee child node 2; and the Zigbee coordinator 3 regularly sends the acquired information to the remote monitoring center 5.

Wherein each control module 6 is CC2530 chip.

A buzzer 4, the buzzer 4 is connected to the Zigbee coordinator 3, and the buzzer 4 is used to receive the alarm signal and alarm sent by the Zigbee coordinator 3.

Remote monitoring center 5, remote monitoring center 5 is used to receive the information that Zigbee coordinator 3 sends to; The point positioning method is used to locate the position of the staff to determine whether the staff has entered the danger zone; and to measure the distance between the staff and each device, to determine whether the staff has operating authority within the set distance; and to Send control instruction to described Zigbee coordinator 3, when enabling signal occurs, Zigbee coordinator 3 is used for sending alarm signal to buzzer 4.

As shown in Figure 2, the Zigbee tag 1 is carried by the staff entering the substation, and the identity information of the staff and the ID information of the authorized equipment of the staff have been entered in the Zigbee tag 1. After the information is transmitted to the remote monitoring center 5, The remote monitoring center 5 can determine whether the staff member is on duty, maintenance personnel, engineer, or other personnel, so as to determine which equipment the staff member has corresponding personnel operation authority, and store this information in the computer.

Each Zigbee sub-node 2 is installed on the corresponding device, and the ID information of the device is entered in the Zigbee sub-section. At the same time, the state parameters of each device are collected through the sensor, and communicate with the Zigbee coordinator 3, and send the ID information to it. Collected state parameters.

Zigbee coordinator 3 nodes are distributed and installed around the substation, and four Zigbee coordinators 3 are arranged around the substation to communicate with Zigbee tags 1 carried by the staff and Zigbee child nodes 2 on each device to obtain Zigbee tags 1 and Zigbee child nodes 2 The information sent and the value of the signal strength of the communication (RSSI, Received Signal Strength Indicator) are sent to the remote monitoring center 5 through the GPRS network, and the location information is calculated and analyzed by the four-point positioning method, so as to locate it and send all The collected data is stored in the computer.

The Zigbee coordinator 3 is connected with the buzzer 4, and can enable the alarm after receiving the alarm information to remind the staff. The GPRS module 11 transmits the data received by the Zigbee coordinator 3 to the remote monitoring center 5, and returns the instruction of the monitoring center to the Zigbee coordinator 3, if there is a return enabling signal, then enable the connection with the Zigbee coordinator 3 Buzzer 4 reports to the police. The remote monitoring center 5 receives the staff position information delivered by the GPRS module 11, locates the staff, analyzes and judges whether the staff is in a danger zone, and if in a danger zone, sends a warning message to enable the buzzer 4 to report to the police and remind the work Personnel have reached the danger zone. At the same time, receive the information sent by Zigbee sub-node 2 on each device, locate the device, collect device status parameters, calculate and analyze the distance between the device and the staff, if it is less than the set distance, then judge whether the staff has the personnel operation of this device Permission, if not, then send a warning message to enable the buzzer 4 to report to the police, reminding the staff that they can't approach the equipment or can't maintain it.

Embodiment 2: As shown in FIG. 6 , a method for monitoring the safety of substation personnel includes the following steps.

S01: Install each module component.

S02: Store the identity information of the corresponding staff and the ID information of the equipment that the staff has operation authority into the corresponding Zigbee tag 1; and store the ID information of each equipment in the Zigbee child node 2 corresponding to the equipment.

First, each device in the substation has its own ID, and the ID information is stored in the Zigbee child node 2 on the device. The staff who enter the substation all have their own Zigbee tags 1, and the Zigbee tags 1 are entered with the identity information of the staff and the personnel operation authority of the corresponding equipment, that is, the ID of the equipment that the staff has operation authority.

S03: Using the sensor module 10 of the Zigbee child node 2 to collect the state parameters of the corresponding equipment.

S04: Use the Zigbee child node 2 to transmit the ID information of the corresponding device and the state parameters of the device to the Zigbee coordinator 3 .

S05: Use the Zigbee coordinator 3 to receive the information data transmitted by the ZigBee child node 2, and obtain the received signal strength value (RSSI) of the communication with the ZigBee child node 2, and transmit the above received or acquired information to the remote monitoring Center 5.

S06: The remote monitoring center 5 locates each device.

Based on this information, the remote monitoring center 5 can calculate the position of each specific device in the substation according to the four-point positioning method and store the state parameters of the device.

S07: When the staff carrying the corresponding Zigbee tag 1 enters the monitoring area, the Zigbee tag 1 sends the information data stored in the Zigbee tag 1 to the Zigbee coordinator 3 .

After the worker enters the substation, the Zigbee tag 1 carried with him will send the device ID information that the worker has permission to the Zigbee coordinator 3 at a set time interval (here we assume every 0.2 seconds).

S08: The Zigbee coordinator 3 receives the information data transmitted by the ZigBee tag 1, and obtains the received signal strength value (RSSI) of the communication with the ZigBee tag 1, and transmits the received or obtained information to the remote monitoring center 5.

Zigbee coordinator 3 transmits this information to remote monitoring center 5 through GPRS network.

S09: The remote monitoring center 5 locates the staff to detect the real-time position of the staff, and judges whether the staff is in a safe state; and sends out corresponding signal instructions.

As shown in FIG. 7, the step S09 includes the following steps.

S091: The remote monitoring center 5 locates the staff in real time through the four-point positioning method.

The remote monitoring center 5 can calculate the specific location of the worker in the substation through the four-point positioning method according to the signal strength (RSSI) value of the transmitted information, and can also perform location tracking.

S092: The remote monitoring center 5 determines whether the staff is in the safe area; if in the safe area, return to step S091; if not in the safe area, then enter step S093.

S093: The remote monitoring center 5 sends an alarm signal to the Zigbee coordinator 3, and the Zigbee coordinator 3 turns on the buzzer 4 to issue an alarm after receiving the alarm instruction enabling signal.

Judging whether the staff member enters the dangerous area, if entering the dangerous area, the monitoring center sends an enabling signal downwards through the GPRS network to enable the buzzer 4 connected to the Zigbee coordinator 3, and the buzzer 4 sends an alarm (the alarm can be set Sound for 2 seconds) to remind the staff to enter the danger zone to prevent safety accidents.

S10: The remote monitoring center 5 judges the operating authority of the staff, and makes corresponding signal instructions.

As shown in Fig. 8, the step S10 includes the following steps.

S101: When a staff member approaches a piece of equipment, the remote monitoring center 5 measures the distance between the staff member and the equipment.

When the staff is close to a certain equipment, the remote monitoring center 5 can analyze and calculate the distance between the staff and the equipment according to the location information of the equipment and the staff.

S102: The remote monitoring center 5 judges the distance between the staff and the equipment, if the distance is greater than the set distance value, then return to step S101; if the distance is smaller than the set distance value, then enter step S103.

S103: The remote monitoring center 5 judges the operation authority of the equipment approached by the staff, if the staff has the operation authority to the equipment approached, then return to step S101; if the staff does not have the operation authority to the equipment approached permission, go to step S104.

If authorized, continue to monitor the device ID information and distance of the receiving staff.

S104: The remote monitoring center 5 sends an alarm signal to the Zigbee coordinator 3, and after the Zigbee coordinator 3 receives the alarm command enabling signal, it turns on the buzzer 4 and sends out an alarm.

When this distance is less than a certain value (here we assume it is 0.5 meters), the remote monitoring center 5 will compare the device ID with the device ID according to the personnel operation authority information entered in the Zigbee tag 1 of the staff member. If there is no operation authority for this device, the monitoring center will send an enable signal through the GPRS network to enable the buzzer 4, and the buzzer 4 will send out an alarm (the alarm sound can be set for 2 seconds), reminding the staff that there is no access to this device. Do not approach or perform operations such as opening or repairing it.

It should be noted that the invention, which has been fully described, is also capable of many alternative and modified embodiments, and is not limited to the specific examples of the above-described embodiments. The above-mentioned embodiments are only used as illustrations of the present invention, rather than limiting the present invention. In a word, the protection scope of the present invention shall include those transformations, substitutions and modifications obvious to those skilled in the art.

Claims (9)

1. a transformer station personnel safety monitoring system, is characterized in that: it comprises

At least one Zigbee label, the corresponding staff of Zigbee label described in each, described Zigbee label has the id information that the identity information of counterpart staff and this staff have the equipment of operating right; Described Zigbee label is used for timing and communicates with Zigbee telegon;

At least one Zigbee child node, Zigbee child node described in each is installed on a corresponding device, and described Zigbee child node has the id information of this equipment; Described Zigbee child node is for gathering the state parameter of corresponding device; And described Zigbee child node is used for regularly communicating with Zigbee telegon;

At least one Zigbee telegon, described Zigbee telegon is installed on designated mounting point; The state parameter of the corresponding device that described Zigbee telegon gathers for the information that obtains the information that has in described Zigbee label and have with the signal strength values communicated between described Zigbee label, described Zigbee child node and described Zigbee child node and with the signal strength values communicated between described Zigbee child node; And described Zigbee telegon is used for regularly the information of acquisition being sent to remote monitoring center;

One hummer, described hummer is connected to described Zigbee telegon, and described hummer is for the alerting signal that receives described Zigbee telegon and send and warning;

One remote monitoring center, the information that described remote monitoring center is sent to for receiving described Zigbee telegon; And

For the particular location of positioning work personnel, judge whether staff enters explosive area; And

For calculating the distance between staff and the close equipment of staff, judge in set distance range, whether staff has operating right to close equipment; And

For sending steering order to described Zigbee telegon, when occurring enable signal, described Zigbee telegon is used for sending alerting signal to described hummer.

2. transformer station personnel safety monitoring system according to claim 1, is characterized in that: described Zigbee telegon is provided with 4, and described remote monitoring center comes the position of positioning work personnel by bow and beam bearings.

3. transformer station personnel safety monitoring system according to claim 1, is characterized in that: described Zigbee label comprises

One control module, for controlling the transmission of the information data had in described Zigbee label;

One clock module, runs clock for providing described Zigbee label;

One Anneta module, for strengthening wireless communication signal intensity;

One power module, for providing power supply.

4. transformer station personnel safety monitoring system according to claim 1, is characterized in that: described Zigbee child node comprises

At least one sensor assembly, for gathering the state parameter of corresponding device;

One control module, for controlling the data acquisition of described sensor assembly; And control the transmission of data that described Zigbee child node has and the data that described sensor assembly gathers;

One clock module, runs clock for providing described Zigbee child node;

One Anneta module, for strengthening wireless communication signal intensity;

One power module, for providing power supply.

5. transformer station personnel safety monitoring system according to claim 1, is characterized in that: described Zigbee telegon comprises

One control module, for controlling the transmission of the information data that described Zigbee telegon obtains;

One GPRS module, for realizing remote data communication;

One clock module, runs clock for providing described Zigbee telegon;

One Anneta module, for strengthening wireless communication signal intensity;

One power module, for providing power supply.

6. the transformer station personnel safety monitoring system according to claim 3,4 or 5, is characterized in that: described control module is CC2530 chip.

7. a transformer station personnel method for safety monitoring, is characterized in that: it comprises the following steps,

S01: install each modular unit;

S02: the identity information of counterpart staff and this staff are had the id information of operating right equipment stored in the Zigbee label of correspondence; And by per unit id information stored in the Zigbee child node corresponding with equipment;

S03: the state parameter of the equipment utilizing the sensor assembly collection of described Zigbee child node corresponding with it;

S04: utilize described Zigbee child node by the id information of corresponding device, the state parameter of equipment are sent to Zigbee telegon with it;

S05: the information data utilizing described Zigbee telegon to receive described ZigBee child node to be sent to, and obtain and the signal strength values communicated between ZigBee child node, and the information of above-mentioned reception or acquisition is sent to remote monitoring center;

S06: described remote monitoring center positions each equipment;

S07: when the staff carrying corresponding described Zigbee label enters guarded region, the information data of depositing in Zigbee label is sent to described Zigbee telegon by described Zigbee label;

S08: described Zigbee telegon receives the information data that described ZigBee label is sent to, and obtain and the signal strength values communicated between ZigBee label, and the information of above-mentioned reception or acquisition is sent to remote monitoring center;

S09: described remote monitoring center positions staff, with the real time position of testing personnel, and judges that whether staff is at safe condition; And send corresponding signal instruction;

S10: the operating right of described remote monitoring center to staff judges, and makes corresponding signal instruction.

8. transformer station personnel method for safety monitoring according to claim 7, is characterized in that: described step S09 comprises the following steps:

S091: described remote monitoring center is located staff in real time by bow and beam bearings;

S092: described remote monitoring center judges that whether staff is in safety zone; If in safety zone, then return step S091; If not in safety zone, then enter step S093;

S093: described remote monitoring center, to the signal that gives the alarm described in described Zigbee telegon, after described Zigbee telegon receives alarm command enable signal, is connected hummer and given the alarm.

9. transformer station personnel method for safety monitoring according to claim 7, is characterized in that: described step S10 comprises the following steps:

S101: when staff is near an equipment, described remote monitoring center calculates the distance between staff and close equipment according to the signal strength values that ZigBee telegon is uploaded;

S102: described remote monitoring center judges, if when distance is greater than the distance value of setting, then return step S101 staff and the distance of close equipment; If when distance is less than the distance value of setting, then enter step S103;

S103: the operating right that have of described remote monitoring center to the close equipment of staff judges, if staff has operating right to close equipment, then returns step S101; If staff does not have operating right to close equipment, then enter step S104;

S104: described remote monitoring center to give the alarm signal to described Zigbee telegon, after described Zigbee telegon receives alarm command enable signal, connects hummer and gives the alarm.