CN114407988B - Network safety monitoring system and monitoring method based on plane shunting - Google Patents
Network safety monitoring system and monitoring method based on plane shunting Download PDFInfo
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Abstract
The invention discloses a network safety monitoring system and a monitoring method based on plane shunting. The system comprises a plurality of shunting groups and a network safety monitoring station, wherein each shunting group comprises a handheld station, a locomotive station, a district station and a monitoring handheld station; each handheld station is in wireless connection with the locomotive station, the district long station and the monitoring handheld station; and the district leader station of each dispatching train unit is respectively connected with the network safety monitoring station through a network bus. The monitoring method comprises equipment information checking error judgment, equipment loss judgment, non-registered equipment joining judgment and shunting operation non-compliance judgment, and a system sending equipment information and alarming processing method. The beneficial effects produced by the invention are as follows: the invention can find the equipment safety of the plane shunting operation in time and give an alarm to remind in time, solves the problem of low manual monitoring efficiency, and can help shunting operation personnel to monitor at any place in a shunting station at any time by adopting the monitoring handheld platform which is convenient to carry.
Description
Technical Field
The invention relates to a network safety monitoring system, in particular to a network safety monitoring system and a network safety monitoring method based on plane shunting.
Background
The railway flat shunting system has many related devices, and mainly comprises a locomotive platform, a handheld platform and a district station, wherein each shunting operation group comprises the locomotive platform, a plurality of handheld platforms and the district station, and one shunting operation station comprises a plurality of shunting operation groups. In the in-service use process, the equipment in the flat shunting system is generally monitored safely in a manual checking mode of workers, if a certain piece of equipment in the system goes wrong, the equipment cannot be found in time to greatly influence the railway flat shunting operation, so that the efficient network safety monitoring system is designed to be very important, the safety problem of the operation can be effectively guaranteed, and the operation risk is reduced.
Disclosure of Invention
In view of the problems in the prior art, the invention provides a network safety monitoring system and a monitoring method based on plane shunting. The invention adds a monitoring handheld station and a network safety monitoring station on the basis of the original plane shunting system, adopts monitoring equipment which is convenient to carry and a double monitoring mode of total monitoring of the system, and can automatically and timely find the safety problem in the plane shunting operation and give an alarm.
The technical scheme adopted by the invention is as follows: a network safety monitoring system based on plane shunting comprises a plurality of shunting groups and network safety monitoring stations, wherein each shunting group comprises one or more handheld stations, a locomotive station, a district station and a monitoring handheld station; each handheld station is in wireless connection with the locomotive station, the district long station and the monitoring handheld station; and the district leader station of each shunting unit is respectively connected with the network safety monitoring station through a network bus.
The monitoring handheld station comprises a first display module, a safety discrimination module and a first air interface module; the safety discrimination module is communicated with the first display module and the first air interface module.
The handheld station comprises a second display module, a first service module and a second air interface module; and the first service module is communicated with the second display module and the second air interface module.
The district long platform comprises a third air interface module, a third service module and a first network module; and the third service module is communicated with the first network module and the third air interface module.
The locomotive platform comprises a fourth air interface module, a second service module and a third display module; the second service module is communicated with the fourth air interface module and the third display module.
The network security monitoring station comprises a second network module and a fourth display module; the second network module is communicated with the first network module and the fourth display module.
The first air interface module, the second air interface module, the third air interface module and the fourth air interface module are communicated with each other.
The handheld station, the locomotive station, the district station and the monitoring handheld station in each dispatching train set are all provided with unique serial number identifiers.
A method for monitoring by adopting a network safety monitoring system based on plane shunting comprises the following steps: the method comprises the steps of equipment information checking error judgment, equipment loss judgment, non-registered equipment adding judgment and shunting operation non-compliance judgment.
The equipment information checking error judging method comprises the following steps:
1. the method comprises the steps that the monitoring handheld station is started, a safety discrimination module selects shunting operation equipment in a shunting group where the monitoring handheld station is located through key and interface operation, shunting operation equipment information is recorded in a registered equipment list, the shunting operation equipment of the shunting group comprises the handheld station, a locomotive platform and a district leader platform, and the equipment information comprises an equipment serial number and an equipment identity.
2. The monitoring handheld station sends air interface broadcast message query equipment information through a first air interface module, and meanwhile, the safety discrimination module opens a query waiting timer to wait for receiving equipment information responses of the handheld station, the locomotive station and the district station in the dispatching train group where the monitoring handheld station is located.
3. After the monitoring handheld station receives an inquiry equipment information response message sent by any equipment of the handheld station, the locomotive station and the district and long station through the first air interface module within a timing time, the safety judgment module analyzes the inquiry equipment information response message, checks whether the serial number and the identity of equipment in the response are consistent with the information in the registration equipment list of the monitoring handheld station, if the equipment information is matched, the equipment information is marked to be normal and online, otherwise, the equipment information is considered to be checked to be wrong; and the monitoring handheld station carries out alarm processing.
4. And the monitoring handheld station inquires the waiting time and judges the sending times, if the sending times are less than or equal to 3, the monitoring handheld station retransmits the air interface message inquiry equipment information through the first air interface module and reopens an inquiry waiting timer, if the sending times are more than 3, the monitoring handheld station stops sending, and the next step is started.
5. The safety discrimination module checks the equipment information, checks the equipment information in the registered equipment list of the monitoring handheld station according to the marked on-line equipment information, alarms if the equipment information is checked to be wrong, and enters a working state if the equipment information is checked to be normal.
Secondly, the equipment disconnection judging method comprises the following steps:
A. the system equipment is in a normal working state, and the monitoring handheld station safety discrimination module starts a directional handshake timer.
B. After the timing time of the directional handshake timer of the monitoring handheld station is up, the safety discrimination module sends handshake information to locomotive stations, handheld stations and district leader station equipment in corresponding shunting groups according to the sequence numbers of the equipment in the shunting groups, and simultaneously the directional handshake timer is turned on again.
C. The safety judgment module opens a waiting handshake response timer, if no handshake response is received within a timing time, whether the sending times is more than 3 is judged, if the sending times is less than or equal to 3, directional handshake information is sent again, and the count is increased by 1; if the sending times are more than 3 and no response is received, the current equipment for sending the directional handshake is considered to be lost, and the monitoring handheld station carries out alarm processing.
D. If the monitoring handheld station receives the handshake response of the corresponding equipment within the timing time of the waiting handshake response timer, the safety judging module marks that the current equipment is normal, and then the waiting handshake response timer is closed.
Thirdly, the method for judging the joining of the non-registered equipment comprises the following steps:
Fourthly, the shunting operation non-compliance judging method comprises the following steps:
The equipment information response of the handheld station, the locomotive station and the district station in the step 2 of the equipment information checking error judging method comprises the following steps:
a. any one of the locomotive platform, the handheld platform and the cell-site platform equipment receives an air interface message sent by the monitoring handheld platform through the fourth air interface module, the second air interface module and the third air interface module respectively in a normal working state.
b. The air interface module of any equipment receiver analyzes the air interface message, and if the message type is the current equipment information, the service module of any equipment receiver is notified; otherwise, entering other flows.
c. And a service module of the receiver of any equipment generates a random number smaller than 60, and the service module starts a timer of random number time.
d. If the timer times out, the service module of the receiver of any equipment packs the message with the equipment identity and the equipment serial number, and sends the empty message to the monitoring handheld station through the empty module of any equipment; otherwise, the current flow is in a waiting state.
The method for carrying out alarm processing on the monitoring handheld station comprises the following steps:
The beneficial effects produced by the invention are as follows: the invention adopts the monitoring handheld station which is convenient to carry, can help shunting operators to monitor at any place in the shunting station at any time, greatly improves the operation efficiency of the shunting operators, simultaneously adopts a double monitoring mode of the monitoring handheld station and the network safety monitoring station, can simultaneously monitor the network safety problems of a plurality of shunting groups, automatically and timely finds the safety problems in the plane shunting operation and gives an alarm.
Drawings
FIG. 1 is a system framework diagram of the present invention;
FIG. 2 is a block diagram showing the construction of the individual device modules of FIG. 1;
FIG. 3 is a flow chart of a method for determining device information checking errors according to the present invention;
FIG. 4 is a flowchart of a method for determining loss of connection of a device according to the present invention;
FIG. 5 is a flow chart of a method for adding a discrimination to a non-registered device in accordance with the present invention;
FIG. 6 is a flow chart of a method for determining non-compliance of a shunting operation in accordance with the present invention;
FIG. 7 is a flow chart of the device information response of the locomotive station, the handheld station and the district station of the present invention;
FIG. 8 is a flow chart of a method for handling network security alarms in accordance with the present invention.
Detailed Description
The invention is further illustrated in the following by the examples and in the accompanying drawings:
as shown in fig. 1, the network security monitoring system based on flat shunting comprises a plurality of shunting groups and network security monitoring stations, wherein each shunting group comprises one or more handheld stations, a locomotive station, a district station and a monitoring handheld station; each handheld station is in wireless connection with the locomotive station, the district long station and the monitoring handheld station; and the district leader station of each shunting unit is respectively connected with the network safety monitoring station through a network bus.
The handheld station, the locomotive station, the district station and the monitoring handheld station in each dispatching train set are all provided with unique serial number identifiers.
The network safety monitoring system based on plane shunting of the embodiment comprises two shunting groups, namely a shunting group 1 and a shunting group 2. The shunting train set 1 consists of three handheld stations, a locomotive station, a district long station and a monitoring handheld station; the identities of the three handheld stations are respectively a shunting person, a brake person 1 and a brake person 2. The dispatching train set 2 consists of two handheld stations, a locomotive station, a district long station and a monitoring handheld station; wherein the identities of the two handheld stations are respectively a shunting person and a braking person 1.
In the system, a TCP/IP network is adopted to connect a district station of the shunting group 1, a district station of the shunting group 2 and a network safety monitoring station. The equipment information of the shunting group 1 is shown in table 1:
TABLE 1 shunting group 1 device information
| Serial number | | Serial number | |
| 1 | Hand-held table 1 (shunting man) | 0000001 | |
| 2 | Hand-held table 2 (brake 1) | 0000002 | |
| 3 | Hand-held table 3 (brake 2) | 0000003 | |
| 4 | Locomotive platform | 0000004 | |
| 5 | District long platform | 0000005 | |
| 6 | Monitoring handheld station | 0000006 |
The equipment information of the shunting group 2 is shown in table 2:
TABLE 2 shunting group 2 device information
| Serial number | | Serial number | |
| 1 | Hand-held table 1 (shunting man) | 0000011 | |
| 2 | Hand-held table 2 (brake 1) | 0000012 | |
| 3 | Locomotive platform | 0000013 | |
| 4 | District long platform | 0000014 | |
| 5 | Monitoring handheld station | 0000015 |
As shown in fig. 2, the monitoring handheld station includes a first display module, a safety discrimination module and a first air interface module; the safety discrimination module is communicated with the first display module and the first air interface module. The handheld station comprises a second display module, a first service module and a second air interface module; the first service module is communicated with the second display module and the second air interface module. The district long platform comprises a third air interface module, a third service module and a first network module; the third service module is communicated with the first network module and the third air interface module; the locomotive platform comprises a fourth air interface module, a second service module and a third display module; the second service module is communicated with the fourth air interface module and the third display module. The network security monitoring station comprises a second network module and a fourth display module; the second network module is communicated with the first network module and the fourth display module.
The monitoring handheld station software of the system is developed based on a Linux operating system, the chip adopts an OMAPL-138 chip of TI company, and a first air interface module adopts a DMR air interface protocol and is divided into a radio frequency unit and a baseband unit. The first display module comprises a sound unit, a key unit and an interface display unit, wherein the audio chip adopts a TLV320AIC3104 chip, the pixels of the liquid crystal screen are 220 x 176, the interface display unit comprises a service display interface, an alarm interface and a setting interface, and the interfaces are switched through keys. The safety discrimination module comprises a service discrimination unit and a storage unit. And the safety judgment module, the first display module and the first air interface module respectively adopt an internal network socket to carry out message communication.
The network security monitoring station software of the system is developed based on a Windows operating system, and the development and compilation environment is QT. The second network module of the network safety monitoring station adopts network transmission protocols of TCP/IP and UDP in a communication mode with the district station in the dispatching group. The second network module is divided into a data processing unit and a transmission unit, and the fourth display module comprises an alarm interface, a service display interface, a control interface and a setting interface.
The handheld station, the remote station, and the locomotive station of the system are all devices known in the art and will not be described herein.
The method for monitoring by adopting the network safety monitoring system based on the flat shunting comprises the following steps: the method comprises the steps of equipment information checking error judgment, equipment loss judgment, non-registered equipment adding judgment and shunting operation non-compliance judgment.
The device information check error determination method comprises the following steps (as shown in fig. 3):
1. the method comprises the steps that the monitoring handheld station is started, a safety discrimination module selects shunting operation equipment in a shunting group where the monitoring handheld station is located through key and interface operation, shunting operation equipment information is recorded in a registered equipment list, the shunting operation equipment of the shunting group comprises the handheld station, a locomotive platform and a district leader platform, and the equipment information comprises an equipment serial number and an equipment identity.
2. The monitoring handheld station sends air interface broadcast message inquiry equipment information through a first air interface module, and meanwhile, the safety discrimination module opens an inquiry waiting timer to wait for receiving equipment information responses of the handheld station, the locomotive station and the district long station in the dispatching train group where the monitoring handheld station is located.
3. After the monitoring handheld station receives an inquiry equipment information response message sent by any equipment of the handheld station, the locomotive station and the district and long station through the first air interface module within a timing time, the safety judgment module analyzes the inquiry equipment information response message, checks whether the serial number and the identity of equipment in the response are consistent with the information in the registration equipment list of the monitoring handheld station, if the equipment information is matched, the equipment information is marked to be normal and online, otherwise, the equipment information is considered to be checked to be wrong; and the monitoring handheld station carries out alarm processing.
4. And the monitoring handheld station inquires the waiting time and judges the sending times, if the sending times are less than or equal to 3, the monitoring handheld station retransmits the empty message inquiry equipment information through the first empty module and restarts an inquiry waiting timer, and if the sending times are more than 3, the monitoring handheld station stops sending and enters the next step.
5. The safety discrimination module checks the equipment information, checks the equipment information in the registered equipment list of the monitoring handheld station according to the marked on-line equipment information, alarms if the equipment information is checked to be wrong, and enters a working state if the equipment information is checked to be normal.
Taking the shunting group 1 in this embodiment as an example, the monitoring handheld station in the shunting group 1 is powered on, the safety discrimination module sets or selects the equipment information currently participating in shunting operation through key and interface operations, the serial numbers are 0000001, 0000002, 0000003, 0000004, 0000005 and 0000006 (as shown in table 1), and the equipment information of shunting operation is recorded in the registered equipment list. The monitoring handheld station sends the inquiry equipment information to the current shunting set 1 equipment through the first air interface module, and if other equipment in the current shunting set 1 receives the information, the equipment information is sent according to the flow of the figure 7. After the monitoring handheld station sends the query message, a 2-second timer is started, and the query message is continuously sent every 2 seconds for 3 times. Within 6 seconds of time, if a response is received from other devices in the dispatch group 1, the device is marked as on-line. After 6 seconds, whether the equipment marked on line is consistent with the equipment in the registration list is checked, if the equipment with the serial number 0000003 is absent in the normal equipment, the equipment information is considered to be wrong (the equipment information is considered to be wrong when the equipment is absent or not matched), and the alarm processing is carried out, wherein the alarm processing flow is as shown in fig. 8.
Secondly, the method for judging the equipment disconnection comprises the following steps (as shown in fig. 4):
A. the system equipment is in a normal working state, and the directional handshake timer is started by the monitoring handheld station safety judgment module.
B. After the timing time of the directional handshake timer of the monitoring handheld station is up, the safety discrimination module sends handshake information to locomotive stations, handheld stations and captain station equipment in corresponding shunting groups according to the sequence numbers of the equipment in the shunting groups, and simultaneously restarts the directional handshake timer.
C. The safety discrimination module opens a waiting handshake response timer, if no handshake response is received within the timing time, whether the sending times is more than 3 is judged, if the sending times is less than or equal to 3, the directional handshake information is sent again, and the count is increased by 1; if the sending times are more than 3 and no response is received, the current equipment for sending the directional handshake is considered to be lost, and the handheld station is monitored to alarm.
D. If the monitoring handheld station receives the handshake response of the corresponding equipment within the timing time of the waiting handshake response timer, the safety discrimination module marks that the current equipment is normal, and then closes the waiting handshake response timer.
Under the normal working state of the system equipment, the monitoring handheld station safety discrimination module can regularly carry out handshake communication with other equipment, handshake messages are sent to the current sequencing equipment at intervals of 1 second according to the sequencing sequence of the handheld station 1, the handheld station 2, the handheld station 3, the locomotive station and the district station, the messages are repeatedly sent if no response is received, if no response is received after the messages are sent for 3 times, the equipment is considered to be disconnected, alarm processing is carried out, and the alarm processing is as shown in figure 8.
The non-registered device joining judgment method comprises the following steps (as shown in fig. 5):
Under the normal working state of the system equipment, the monitoring handheld station receives an empty message sent by the locomotive station through the first empty module, the safety discrimination module analyzes the message and judges the equipment serial number and the equipment identity information of a sender, then the safety discrimination module checks the equipment serial number and the equipment identity information with the equipment information in the registered equipment list of the monitoring handheld station, and if the locomotive station serial number of the sent message is judged to be 0000008 (not in the table 1) according to the equipment information, the equipment is considered to be added as non-registered equipment, and alarm processing is carried out, wherein the alarm processing is as shown in the figure 8.
The method for judging the non-compliance of the shunting operation comprises the following steps (as shown in fig. 6):
Under the normal working state of the system equipment, the monitoring handheld station receives an air interface message sent by the hand-held station of a shunting worker through the first air interface module, analyzes the message, judges the message to be a shunting operation signaling message, analyzes the signaling content, judges the current traveling state through the safety judgment module, sends a 'one-car' signaling, judges that the shunting operation is not in compliance when the 'three-car' signaling is received, and carries out alarm processing, wherein the alarm processing is as shown in figure 8.
In the device information checking error determination method, in step 2, the device information responses of the handheld station, the locomotive station, and the district station include the following steps (as shown in fig. 7):
a. any one of the locomotive platform, the handheld platform and the cell-site platform equipment receives an air interface message sent by the monitoring handheld platform through the fourth air interface module, the second air interface module and the third air interface module respectively in a normal working state.
b. The air interface module of any equipment receiver analyzes the air interface message, and if the message type is the current equipment information, the service module of any equipment receiver is informed; otherwise, entering other flows.
c. The service module of any equipment receiver generates a random number smaller than 60, and the service module starts a timer of random number time.
d. If the timer times out, the service module of any equipment receiver packs the message with the equipment identity and the equipment serial number, and sends the empty message to the monitoring handheld station through the empty module of any equipment; otherwise, the current flow is in a waiting state.
After the locomotive platform, the handheld platform and the cell-phone station of the system receive the message of inquiring the equipment information sent by the monitoring handheld platform through the air interface module, if the message type is inquiring the current equipment information, the locomotive platform, the handheld platform and the cell-phone station inform the service module to process the response of the equipment information, firstly a random number in 60 is generated, for example, 36 is generated, the service module opens a 36-second timer, and after 36 seconds, the locomotive platform, the handheld platform and the cell-phone station pack and send the air interface message with the equipment information to the monitoring handheld platform.
The alarm processing method of the monitoring handheld station of the system comprises the following steps (as shown in figure 8):
When the security discrimination module of the monitoring handheld station monitors that the non-registered equipment is added, the alarm information and the serial number of the non-registered equipment are stored in a storage FLASH of the monitoring handheld station, and the serial number and the non-registered equipment alarm information are displayed on an interface of the monitoring handheld station through the first display module. The first air interface module of the monitoring handheld station packs the alarm information into air interface information and sends the air interface information to the district leader station, the district leader station receives the information through the third air interface module and then analyzes the information, informs the first network module, packs the alarm information into network information and sends the network information to the network safety monitoring station, the network safety monitoring station analyzes the network alarm information through the second network module and informs the fourth display module, judges the shunting group number, and finally carries out interface alarm display according to the shunting group number (shunting group 1).
Claims (3)
1. A network security monitoring method based on plane shunting is characterized in that a network security monitoring system based on plane shunting is adopted for network security monitoring; the system comprises a plurality of dispatching groups and network safety monitoring stations, wherein each dispatching group comprises one or more handheld stations, a locomotive station, a district station and a monitoring handheld station; each handheld station is wirelessly connected with the locomotive station, the district station and the monitoring handheld station; the district leader station of each shunting unit is respectively connected with the network safety monitoring station through a network bus;
the monitoring handheld station comprises a first display module, a safety discrimination module and a first air interface module; the safety discrimination module is communicated with the first display module and the first air interface module;
the handheld station comprises a second display module, a first service module and a second air interface module; the first service module is communicated with the second display module and the second air interface module;
the district long platform comprises a third air interface module, a third service module and a first network module; the third service module is communicated with the first network module and the third air interface module;
the locomotive platform comprises a fourth air interface module, a second service module and a third display module; the second service module is communicated with the fourth air interface module and the third display module;
the network security monitoring station comprises a second network module and a fourth display module; the second network module is communicated with the first network module and the fourth display module;
the first air interface module, the second air interface module, the third air interface module and the fourth air interface module are communicated with each other;
the handheld station, the locomotive station, the district station and the monitoring handheld station in each dispatching train set are provided with unique serial number identifiers;
the monitoring method comprises the following steps: equipment information checking error judgment, equipment loss judgment, non-registered equipment adding judgment and shunting operation non-compliance judgment;
the equipment information checking error judging method comprises the following steps:
1. the method comprises the steps that a monitoring handheld station is started, a safety discrimination module selects shunting operation equipment in a shunting group where the monitoring handheld station is located through key and interface operation, shunting operation equipment information is recorded in a registered equipment list, the shunting operation equipment of the shunting group comprises the handheld station, a locomotive platform and a district leader platform, and the equipment information comprises an equipment serial number and an equipment identity;
2. the monitoring handheld station sends air interface broadcast message inquiry equipment information through a first air interface module, and meanwhile, the safety discrimination module opens an inquiry waiting timer to wait for receiving equipment information responses of the handheld station, the locomotive station and the district station in the dispatching train group where the monitoring handheld station is located;
3. after the monitoring handheld station receives an inquiry equipment information response message sent by any equipment of the handheld station, the locomotive station and the district and long station through the first air interface module within a timing period, the safety judgment module analyzes the inquiry equipment information response message, checks whether the serial number and the identity of equipment in the response are consistent with the information in the registration equipment list of the monitoring handheld station, if the equipment information is matched, the equipment information is marked to be normal and online, otherwise, the equipment information is considered to be checked to be wrong, and the monitoring handheld station carries out alarm processing;
4. the monitoring handheld station queries the waiting time and judges the sending times, if the sending times are less than or equal to 3 times, the monitoring handheld station retransmits air interface message query equipment information through the first air interface module and restarts a query waiting timer, and if the sending times are more than 3 times, the monitoring handheld station stops sending and enters the next step;
5. the safety discrimination module checks the equipment information, checks the marked on-line equipment information with the equipment information in the registered equipment list of the monitoring handheld station, alarms if the equipment information is checked to be wrong, and enters a working state if the equipment information is checked to be normal;
secondly, the equipment disconnection judging method comprises the following steps:
A. the system equipment is in a normal working state, and the monitoring handheld station safety discrimination module starts a directional handshake timer;
B. after the timing time of the directional handshake timer of the monitoring handheld station is up, the safety discrimination module sends handshake information to locomotive stations, handheld stations and remote station equipment in corresponding shunting groups according to the sequence numbers of the equipment in the shunting groups, and simultaneously reopens the directional handshake timer;
C. the safety judgment module opens a waiting handshake response timer, if no handshake response is received within a timing time, whether the sending times is more than 3 is judged, if the sending times is less than or equal to 3, directional handshake information is sent again, and the count is increased by 1; if the sending times are more than 3 and no response is received all the time, the current equipment for sending the directional handshake is considered to be lost, and the monitoring handheld station carries out alarm processing;
D. if the monitoring handheld station receives the handshake response of the corresponding equipment within the timing time of the handshake response waiting timer, the safety discrimination module marks that the current equipment is normal, and then closes the handshake response waiting timer;
thirdly, the method for judging the joining of the non-registered equipment comprises the following steps:
fourthly, the shunting operation non-compliance judging method comprises the following steps:
2. The network security monitoring method based on flat shunting of claim 1, wherein the equipment information checking error discrimination method comprises the following steps of responding to the equipment information of the handheld station, the locomotive station and the district station in step 2:
a. any one of the locomotive platform, the handheld platform and the cell-site platform equipment receives an air interface message sent by the monitoring handheld platform through a fourth air interface module, a second air interface module and a third air interface module respectively in a normal working state;
b. the air interface module of any equipment receiver analyzes the air interface message, and if the message type is the current equipment information, the service module of any equipment receiver is notified; otherwise, entering other flows;
c. a service module of the receiver of any equipment generates a random number smaller than 60, and the service module starts a timer of random number time;
d. if the timer times out, the service module of the receiver of any equipment packs the message with the equipment identity and the equipment serial number, and sends the empty message to the monitoring handheld station through the empty module of any equipment; otherwise, the current flow is in a waiting state.
3. The network security monitoring method based on flat shunting of claim 1, wherein the method for alarm processing of the monitoring handheld station comprises the following steps:
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