CN110456779B - DCS system abnormity monitoring device - Google Patents
DCS system abnormity monitoring device Download PDFInfo
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- CN110456779B CN110456779B CN201910790576.5A CN201910790576A CN110456779B CN 110456779 B CN110456779 B CN 110456779B CN 201910790576 A CN201910790576 A CN 201910790576A CN 110456779 B CN110456779 B CN 110456779B
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- G05B23/00—Testing or monitoring of control systems or parts thereof
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Abstract
The invention provides a DCS system abnormity monitoring device, which comprises various monitoring function blocks and an Internet access function block, wherein all the monitoring function blocks are connected with the Internet access function block; each type of monitoring function block is used for sending the acquired working operation state parameters of the corresponding hardware module in the DCS to the Internet access function block; and the internet access function block is used for judging whether the hardware module corresponding to each type of monitoring function block is abnormal or not according to the working running state parameter sent by each type of monitoring function block, and if so, alarming the corresponding hardware module for abnormity. The invention respectively configures corresponding monitoring function blocks for different hardware modules in the DCS system, and monitors each working operation state of the corresponding hardware module by adopting the monitoring function blocks, thereby realizing more precise and accurate monitoring of each hardware module of the DCS system and improving the stable safety and reliability of the DCS system.
Description
Technical Field
The embodiment of the invention relates to the technical field of DCS system monitoring, in particular to a DCS system abnormity monitoring device.
Background
A Distributed Control System (DCS) system of a power plant is a novel computer Control system relative to a centralized Control system, and is developed and evolved on the basis of the centralized Control system. The DCS is a multi-stage computer system which is composed of a process control stage and a process monitoring stage and takes a communication network as a link, integrates 4C technologies such as computers, communication, display and control and the like, and has the basic idea of decentralized control, centralized operation, hierarchical management, flexible configuration and convenient configuration.
Monitoring the operating state and the process parameters of the process equipment of the DCS is important for the safe and stable operation of the DCS.
The traditional abnormal alarm for the power plant DCS system is generally divided into the following areas: the monitoring system mainly monitors and alarms the boilers, the steam engines, the electric devices and other thermal equipment, but the DCS comprises a plurality of hardware devices, and the monitoring of the hardware devices is also very important for the normal operation of the DCS.
Disclosure of Invention
In order to solve or partially solve the above-mentioned defects, an embodiment of the present invention provides a DCS system abnormality monitoring apparatus.
The invention provides a DCS system abnormity monitoring device, which comprises an Internet surfing function block and various monitoring function blocks, wherein all the monitoring function blocks are connected with the Internet surfing function block;
each type of monitoring function block is used for monitoring the working operation state of a corresponding hardware module in the DCS and sending the working operation state parameters of the hardware module to the Internet function block;
and the internet access function block is used for judging whether the hardware module corresponding to each type of monitoring function block is abnormal or not according to the working running state parameter sent by each type of monitoring function block, and if so, alarming the corresponding hardware module for abnormity.
On the basis of the technical scheme, the invention can be improved as follows.
Furthermore, the various monitoring function blocks comprise a Tcard function block, a TNode function block, a TDPU function block and a TUDH function block, the Internet access function block comprises an analog quantity Internet access function block and a switching quantity Internet access function block, and the monitoring device further comprises a first counting function block and a second counting function block;
the Tcard function block passes through first count function block with the switching value function block of surfing the net is connected, the TNode function block passes through the second count function block with the switching value function block of surfing the net is connected, the TDPU function block with the analog quantity function block of surfing the net is connected, the TUDH function block respectively with the analog quantity function block of surfing the net with the switching value function block of surfing the net is connected.
Further, the Tcard function block is configured to transmit the acquired operating state parameter of each I/O card of each physical I/O station in the DCS system to the first counting function block, where the DCS system includes a plurality of physical I/O stations, and each physical I/O station includes a plurality of I/O cards;
the first counting function block is used for recording the failure times of each I/O card according to the working operation state parameters of each I/O card of each physical I/O station, counting the sum of the failure times of all the I/O cards of all the physical I/O stations and transmitting the sum of the failure times to the switching value networking function block;
and the switching value networking function block is used for determining to carry out abnormity alarm or not to carry out abnormity alarm on a physical I/O station in the DCS according to the sum of the failure times.
Furthermore, each I/O card is a dual network card, and the Tcard functional block is specifically configured to:
monitoring the connection state of the A network and the B network of each I/O card of each physical I/O station in the DCS system, and transmitting the connection state of the A network and the B network of each I/O card to the first counting function block in a digital signal form through corresponding pins so that the first counting function block records the failure frequency of each I/O card according to the digital signal.
Furthermore, the number of the TNode function blocks is equal to the number of DPU modules in the DCS, and each DPU module is configured with a corresponding TNode function block;
each TNode function block is used for monitoring faults of the communication modules of the A network and the B network or communication cables of each physical I/O station in the corresponding DPU module and transmitting corresponding fault information to the second counting function block;
the second counting function block is used for counting the failure times of the A network communication module, the B network communication module or the communication cable in each DPU module according to the failure information of the A network communication module, the B network communication module or the communication cable of each physical I/O station in each DPU module transmitted by each TNode function block, and transmitting the failure times to the switching value networking function block;
and the switching value networking function block is used for determining to carry out abnormity alarm or not to carry out abnormity alarm on a DPU module in the DCS according to the failure times.
Furthermore, the number of the TDPU functional blocks is equal to that of DPU modules in the DCS, and each DPU module is configured with a corresponding TDPU functional block;
each TDPU functional block is used for monitoring the CPU temperature, the CUP load rate and the CUP memory utilization rate of the corresponding DPU module and transmitting the monitored CPU temperature, the CUP load rate and the CUP memory utilization rate to the analog quantity internet access functional block;
correspondingly, the analog quantity internet function block is used for:
and comparing the CPU temperature, the CUP load rate and the CPU memory utilization rate of each DPU module with corresponding first threshold values, if the CPU temperature, the CUP load rate and the CPU memory utilization rate exceed the first threshold values, alarming, and otherwise, not alarming.
Furthermore, the number of the TUDH function blocks is equal to that of UDH modules in the DCS, and each UDH module is configured with a corresponding TUDH function block;
each TUDH function block is used for monitoring the load rates of the network A and the network B of the corresponding UDH module and the network connection states of the network A and the network B, transmitting the load rates of the network A and the network B of the UDH module to the analog quantity network surfing function block and transmitting the network connection states of the network A and the network B of the UDH module to the switching quantity network surfing function block;
the analog quantity network access function block is used for comparing the load rates of the network A and the network B of each UDH module with corresponding second threshold values, and alarming if the load rates exceed the second threshold values;
and the switching value network-accessing function block is used for determining whether to alarm or not according to the network connection state of the network A and the network B of each UDH module.
Furthermore, the internet access function block is further configured to display the abnormal alarm information of the hardware modules corresponding to the monitoring function blocks of the same type in the same alarm list.
Furthermore, the monitoring device also comprises an analog quantity selection function block;
the analog quantity selection function block is used for calculating a deviation value between a thermal parameter measured at each thermal measurement point of the redundant configuration and a normal reference thermal parameter, and if the deviation value is larger than a preset range, an abnormal instruction is sent to the network access function block, wherein a plurality of thermal measurement points are redundantly configured for specific thermal equipment in the DCS;
and the internet access function block is used for carrying out corresponding abnormity alarm according to the abnormity instruction. The invention has the beneficial effects that: the method comprises the steps of configuring corresponding monitoring function blocks for different hardware modules in the DCS system respectively, and monitoring each working operation state of the corresponding hardware module by the aid of the monitoring function blocks, so that each hardware module of the DCS system is more accurately monitored, and the stability, safety and reliability of the DCS system are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a connection block diagram of an abnormality monitoring apparatus of a DCS system according to an embodiment of the present invention;
FIG. 2 is a block diagram of a DCS system anomaly monitoring device according to another embodiment of the present invention;
FIG. 3 is a pin diagram of the Tcard function block;
FIG. 4 is a pin diagram of a TNode function block;
FIG. 5 is a pin diagram of a TDPU functional block;
FIG. 6 is a pin diagram of the TUDH function block.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a DCS system anomaly monitoring apparatus according to an embodiment of the present invention is provided, including an internet function block and multiple types of monitoring function blocks, where all the monitoring function blocks are connected to the internet function block.
Each type of monitoring function block is used for monitoring the working operation state of a corresponding hardware module in the DCS and sending the working operation state parameters of the hardware module to the Internet access function block; and the internet access function block is used for judging whether the hardware module corresponding to each type of monitoring function block is abnormal or not according to the working running state parameter sent by each type of monitoring function block, and if so, alarming the corresponding hardware module for abnormity.
Specifically, the DCS is an english abbreviation (Distributed control system) of a Distributed control system, is also called as a Distributed control system in the domestic automatic control industry, is a novel computer control system relative to a centralized control system, and is developed and evolved on the basis of the centralized control system. The system is a multi-stage computer system which is composed of a process control stage and a process monitoring stage and takes a communication network as a link, integrates 4C technologies of computers, communication, display, control and the like, and has the basic ideas of decentralized control, centralized operation, hierarchical management, flexible configuration and convenient configuration.
The DCS system comprises various hardware modules, and the working operation state of each hardware module can influence the normal operation of the whole DCS system. Therefore, each hardware module in the DCS system needs to be monitored in working operation state, and when the hardware module is in abnormal operation state, abnormal alarm is timely carried out, so that the worker can timely find out the abnormity of the DCS system and then repair the hardware module.
In the embodiment of the invention, the monitoring function blocks of the corresponding types are configured according to the types of the hardware modules of the DCS, and the working operation states of the hardware modules of the corresponding types are monitored by utilizing the monitoring function blocks. The monitoring function block transmits the monitored working operation state parameters of the corresponding hardware modules to the internet access function block, and the internet access function block determines whether to alarm according to the working operation state parameters of each hardware module.
The invention respectively configures corresponding monitoring function blocks for different hardware modules in the DCS system, and monitors each working running state of the corresponding hardware module by adopting the monitoring function blocks, thereby realizing the purpose of accurately and finely monitoring each hardware module of the DCS system and improving the stable safety and reliability of the DCS system.
In an embodiment of the present invention, referring to fig. 2, the multiple types of monitoring function blocks include a Tcard function block, a TNode function block, a TDPU function block, and a TUDH function block, the internet function block includes an analog internet function block and a switching internet function block, and the monitoring device further includes a first counting function block and a second counting function block. Wherein, the Tcard function block is connected with the switching value network function block through a first counting function block, the TNode function block is connected with the switching value network function block through a second counting function block, the TDPU function block is connected with the switching value network function block, and the TUDH function block is connected with the analog quantity network function block and the switching value network function block respectively.
In order to adapt to monitoring various types of hardware modules in the DCS system, various types of monitoring function blocks are configured correspondingly, in an embodiment of the present invention, the monitoring function block mainly includes a Tcard function block, a TNode function block, a TDPU function block, and a TUDH function block, and these 4 types of function blocks may include one or more monitoring function blocks.
The monitoring function block transmits the working running state parameters of the hardware module to the analog quantity internet surfing function block when the working running state parameters acquired by the monitoring function block to the hardware module are analog quantity; when the working operation state parameters collected by the hardware module by the monitoring function block are digital values, the working operation state parameters of the hardware module are transmitted to the switching value internet function block by the monitoring function block.
The Tcard function block and the TNode function block count the operating state parameters acquired by the hardware module, and therefore, in the embodiment of the present invention, the first counting function block and the second counting function block are respectively configured for the Tcard function block and the TNode function block, and the statistical counting is performed on the operating state parameters of the corresponding hardware module.
In an embodiment of the invention, the Tcard functional block is configured to transmit the acquired working operation state parameters of each I/O card of each physical I/O station in the DCS system to the first counting functional block, where the DCS system includes a plurality of physical I/O stations, and each physical I/O station includes a plurality of I/O cards; the first counting function block is used for recording the failure times of each I/O card according to the working operation state parameters of each I/O card of each physical I/O station, counting the sum of the failure times of all the I/O cards of all the physical I/O stations and transmitting the sum of the failure times to the switching value networking function block; and the switching value networking function block is used for determining to carry out abnormity alarm or not to carry out abnormity alarm on the physical I/O station in the DCS according to the sum of the failure times.
The embodiment of the invention specifically introduces the Tcard functional block, wherein the Tcard functional block is mainly used for monitoring the working operation states of all I/O cards in all physical I/O stations of the DCS. The DCS system comprises a plurality of physical I/O stations, and each physical I/O station comprises a plurality of I/O cards. In the Tcard functional block, a corresponding station number is set for each physical I/O station of the DCS system, and a card number is set for each I/O card in each physical I/O station.
The Tcard functional block monitors the working operation state of each I/O card in each physical I/O station in the DCS system, and transmits the working operation state parameters of each I/O card to the first counting functional block. The first counting function block counts the failure times of each I/O card according to the working operation state parameters of each I/O card, for example, if a certain I/O card fails 3 times at the present moment, the failure times counted by the first counting function block for the I/O card is 3. The first counting function block sums the failure times of all I/O cards of all physical I/O stations in the DCS system to obtain the total failure times, and transmits the total failure times to the switching value networking function block.
And the switching value Internet access function block determines to perform or not perform abnormal alarm on a physical I/O station in the DCS according to the sum of the failure times of all I/O cards. In the embodiment of the invention, when the total failure times of all the I/O cards are more than or equal to 1, the I/O cards in the DCS system are failed, so the switching value networking function block gives an alarm to remind a worker that a physical I/O station in the DCS system fails.
In an embodiment of the present invention, each I/O card is a dual network card, and the Tcard functional block is specifically configured to: the method comprises the steps of monitoring the A network state and the B network state of each I/O card of each physical I/O station in the DCS, and transmitting the A network state and the B network state of each I/O card to a first counting function block in a digital signal form through corresponding pins, so that the first counting function block records the failure frequency of each I/O card according to digital signals.
Specifically, each I/O card in the physical I/O station is a dual-network card, namely each I/O card comprises two network ports, internal equipment can be in communication connection with the outside through any one network port, and normal communication between the equipment can be ensured by arranging the two network ports. The Tcrad functional block specifically monitors an a-network state and a B-network state of each I/O card in each physical I/O station in the DCS system, and is a pin diagram of the Tcard functional block, see fig. 3. The A-network state parameter of each I/O card is transmitted to the first counting function block through a pin Q1 of the Tcard function block, and the B-network state parameter of each I/O card is transmitted to the first counting function block through a pin Q2 of the Tcard function block. More specifically, when the A net of the I/O card goes wrong, the pin Q1 of the Tcard functional block outputs high level to the first counting functional block, and when the A net of the I/O card goes wrong, the pin Q1 of the Tcard functional block outputs low level to the first counting functional block; similarly, when the B-net of the I/O card fails, the pin Q2 of the Tcard functional block outputs a high level to the first counting functional block, and when the B-net of the I/O card fails, the pin Q2 of the Tcard functional block outputs a low level to the first counting functional block.
The first counting functional block counts the failure times of each I/O card according to the high and low levels transmitted by the pin Q1 and the pin Q2 of the Tcard functional block.
In one embodiment of the invention, the number of TNode functional blocks is equal to the number of DPU modules in the DCS system. Each TNode function block is used for monitoring faults of the A network communication module, the B network communication module or the communication cable of each physical I/O station in the corresponding DPU module and transmitting corresponding fault information to the second counting function block through corresponding pins; the second counting function block is used for counting the failure times of the A network communication module, the B network communication module or the communication cable in each DPU module according to the failure information of the A network communication module, the B network communication module or the communication cable of each physical I/O station in each DPU module transmitted by each TNode function block, and transmitting the failure times to the switching value networking function block; and the switching value networking function block is used for determining to carry out abnormity alarm or not to carry out abnormity alarm on a DPU module in the DCS according to the failure times.
Specifically, in the embodiment of the present invention, the TNode function block mainly monitors a fault of a DPU (Distributed Processing Unit) module, where one DPU module is configured with one TNode function block, that is, the number of TNode function blocks is equal to the number of DPU modules in the DCS system.
The DCS comprises a plurality of DPU modules, one DPU module comprises a plurality of physical I/O stations, and each TNode module monitors communication cable faults of an A network and a B network or the A network and the B network of each physical I/O station in the corresponding DPU module. Referring to fig. 4, which is a schematic pin diagram of the TNode function block, the TNode function block transmits the fault information of the a-network and B-network communication modules of each physical I/O station in the DPU module or the communication cables of the a-network and B-network to the second counting function block through corresponding pins.
The TNode function block may be configured with a station number of each physical I/O station, and when the a-network communication module or the a-network communication cable of the physical I/O station fails, the pin Q of the TNode function block outputs a high level to the second count function block, and when the a-network communication module or the a-network communication cable of the physical I/O station fails, the pin Q of the TNode function block outputs a low level to the second count function block; similarly, when the B-net communication module or the B-net communication cable of the physical I/O station fails, the pin Q1 of the TNode function block outputs a high level to the second count function block, and when the B-net communication module or the B-net communication cable of the physical I/O station does not fail, the pin Q1 of the TNode function block outputs a low level to the second count function block.
And the second counting function block counts the failure times of the A network communication module, the B network communication module or the communication cable in each DPU module according to the failure information of the A network communication module, the B network communication module or the communication cable of each physical I/O station in each DPU module transmitted by each TNode function block, and transmits the failure times to the switching value networking function block. And the switching value network function block determines to perform or not perform abnormity alarm on the DPU module in the DCS according to the failure times. In the embodiment of the invention, when the number of times that the switching value networking function block receives the fault monitored by one TNode function block transmitted by the second counting function block is greater than or equal to 1, which indicates that the DPU module corresponding to the TNode function block has a fault, the switching value networking function block performs an exception alarm, which indicates that the corresponding DPU module has a fault.
In one embodiment of the invention, the number of TDPU functional blocks is equal to the number of DPU modules in the DCS system. Each TDPU functional block is used for monitoring the CPU temperature, the CUP load rate and the CUP memory utilization rate of the corresponding DPU module and transmitting the CPU temperature, the CUP load rate and the CUP memory utilization rate to the analog quantity internet function block through corresponding pins; correspondingly, the analog quantity internet function block is used for: and comparing the CPU temperature, the CUP load rate and the CPU memory utilization rate of each DPU module with corresponding first threshold values, if the CPU temperature, the CUP load rate and the CPU memory utilization rate exceed the first threshold values, alarming, and otherwise, not alarming.
Specifically, the TDPU function blocks mainly monitor DPU modules in the DCS system, the number of the TDPU function blocks is equal to that of the DPU modules in the DCS system, each DPU module is provided with a corresponding TDPU function block, each TDPU function block monitors the CPU temperature, the CUP load factor and the CUP memory utilization rate of the corresponding DPU module, and the analog quantity internet surfing function blocks are transmitted through corresponding pins. Referring to fig. 5, which is a schematic pin diagram of the TDPU function block, the TDPU function block transmits the CPU temperature of the DPU module to the analog quantity internet access function block through the Temp pin, transmits the CPU load rate of the DPU module to the analog quantity internet access function block through the CLOAD pin, and transmits the CPU memory usage rate of the DPU module to the analog quantity internet access function block through the MLOAD pin. The CPU temperature, the CPU load rate and the CPU memory utilization rate of the DPU module transmitted to the analog quantity Internet access function block by the TDPU function block are analog signals, the CPU temperature, the CPU load rate and the CPU memory utilization rate of the DPU module are compared with preset first threshold values by the analog quantity Internet access function block, and if one of the CPU temperature, the CPU load rate and the CPU memory utilization rate exceeds the corresponding first threshold value, an alarm is given.
In one embodiment of the present invention, the number of TUDH function blocks is equal to the number of UDH (Unit data high speed network) modules in the DCS system. Each TUDH function block is used for monitoring the load rates of the network A and the network B of the corresponding UDH module and the network connection states of the network A and the network B, transmitting the load rates of the network A and the network B of the UDH module to the analog quantity network accessing function block and transmitting the network connection states of the network A and the network B of the UDH module to the switching value network accessing function block; the analog quantity network access function block is used for comparing the load rates of the network A and the network B of each UDH module with corresponding second threshold values, and alarming if the load rates exceed the second threshold values; and the switching value network-accessing function block is used for determining whether to alarm or not according to the network connection state of the network A and the network B of each UDH module.
Specifically, the TUDH function blocks mainly monitor the working state of the UDH modules in the DCS, the number of the TUDH function blocks is equal to that of the UDH modules in the DCS, and one TUDH function block monitors the working state of one UDH module in the DCS. The TUDH function block mainly monitors the load rate of the A network and the B network of the UDH module and the network connection state of the A network and the B network. The load rates of the network A and the network B of the UDH module are analog quantities, and the network connection states of the network A and the network B of the UDH module are digital quantities, so that the TUDH function block transmits the load rates of the network A and the network B of the UDH module to the analog quantity network function block, and transmits the network connection states of the network A and the network B of the UDH module to the switching value network function block.
More specifically, referring to fig. 6, which is a schematic diagram of a pin of the TUDH function block, the TUDH function block transmits a network load rate of the UDH module to the analog quantity networking function block through the ALoad pin, transmits a network load rate of the UDH module to the analog quantity networking function block through the BLoad pin, transmits a network connection state of the network a of the UDH module to the switching quantity networking function block through the ALink pin, and transmits a network connection state of the network B of the UDH module to the switching quantity networking function block through the Blink pin.
And the analog quantity network accessing function block compares the load rates of the network A and the network B of each UDH module with a preset corresponding second threshold, and when the load rates of the network A and the network B of the UDH module exceed the preset second threshold, the analog quantity network accessing function block performs corresponding abnormal alarm. Similarly, when the network connection states of the network a and the network B of the UDH module are abnormal (for example, the network is unavailable), the switching value internet function block performs corresponding abnormal alarm.
In an embodiment of the present invention, the internet access function block is configured to display the abnormal alarm information of the hardware modules corresponding to the monitoring function blocks of the same type in the same alarm list.
Specifically, the network access function block (including the analog quantity network access function block and the switching quantity network access function block) displays the abnormal alarm information of the hardware module in the DCS system on an optical character alarm picture.
More specifically, the abnormality alarm information of the hardware module monitored by the Tcard function block is displayed in the same alarm list, and similarly, the abnormality alarm information of the hardware module monitored by the TNode function block, the abnormality alarm information of the hardware module monitored by the TDPU function block, and the abnormality alarm information of the hardware module monitored by the TUDH function block are respectively displayed in the same alarm list.
In one embodiment of the invention, the monitoring device further comprises a monitoring device according to claim 1, characterized in that the monitoring device further comprises an analog quantity selection function block;
the analog quantity selection function block is used for calculating a deviation value between a thermal parameter measured at each thermal measurement point of the redundant configuration and a normal reference thermal parameter, and if the deviation value is larger than a preset range, an abnormal instruction is sent to the network access function block, wherein a plurality of thermal measurement points are redundantly configured for specific thermal equipment in the DCS; and the internet access function block is used for carrying out corresponding abnormity alarm according to the abnormity instruction.
Specifically, for important thermal equipment in the DCS system, dual redundancy or triple redundancy is adopted, that is, a plurality of thermal measurement points are configured for the thermal equipment redundancy, for example, for triple redundant thermal equipment, when a certain thermal parameter of the thermal equipment needs to be measured, three thermal measurement points are configured for the thermal equipment, a sensor is placed at each thermal measurement point, and the sensor is adopted to measure the thermal parameter of the thermal equipment, so as to obtain three values of the thermal parameter of the thermal equipment. For example, the three values of the thermal parameter may be sorted according to the magnitude of the value, and the middle value is taken to represent the thermal parameter value of the thermal equipment; or taking the average value of the three values to represent the thermal parameter value of the thermal equipment, or taking two of the three values as the thermal parameter value of the thermal equipment.
The conventional method is to compare the determined thermal parameter value of the thermal equipment with a normal reference value, that is, calculate a deviation value between the thermal parameter of the thermal equipment and the normal reference value, if the deviation value is within a preset range, it is indicated that the thermal parameter of the thermal equipment is not abnormal, otherwise, the thermal parameter of the thermal equipment is abnormal.
In practice, as long as the deviation between the thermal parameter value measured by one of the thermal measurement points and the normal reference value is not within the preset range, the thermal parameter of the thermal equipment is abnormal.
Therefore, in the embodiment of the invention, the deviation value between the thermal parameter value measured by each thermal measurement point and the normal reference value is calculated to obtain three deviation values, if one deviation value is larger than the preset range, the thermal parameter of the thermal equipment is indicated to be abnormal, and corresponding abnormal alarm is performed.
The DCS system abnormity monitoring device provided by the invention has the advantages that the corresponding monitoring function blocks are respectively configured for different hardware modules in the DCS system, and the monitoring function blocks are adopted to monitor each working operation state of the corresponding hardware modules, so that each hardware module of the DCS system is more finely and accurately monitored, and the stability, safety and reliability of the DCS system are improved.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A DCS system abnormity monitoring device is characterized by comprising an Internet surfing function block and multiple types of monitoring function blocks, wherein all the monitoring function blocks are connected with the Internet surfing function block;
each type of monitoring function block is used for monitoring the working operation state of a corresponding hardware module in the DCS and sending the working operation state parameters of the hardware module to the Internet function block;
the network access function block is used for judging whether the hardware module corresponding to each type of monitoring function block is abnormal or not according to the working running state parameter sent by each type of monitoring function block, and if so, alarming the corresponding hardware module for abnormity;
the monitoring device comprises a plurality of types of monitoring function blocks, a plurality of types of monitoring function blocks and a monitoring device, wherein the plurality of types of monitoring function blocks comprise a Tcard function block, a TNode function block, a TDPU function block and a TUDH function block, the networking function blocks comprise an analog quantity networking function block and a switching quantity networking function block, and the monitoring device further comprises a first counting function block and a second counting function block;
the Tcard function block passes through first count function block with the switching value function block of surfing the net is connected, the TNode function block passes through the second count function block with the switching value function block of surfing the net is connected, the TDPU function block with the analog quantity function block of surfing the net is connected, the TUDH function block respectively with the analog quantity function block of surfing the net with the switching value function block of surfing the net is connected.
2. The monitoring device of claim 1,
the Tcard functional block is used for acquiring working operation state parameters of each I/O card of each physical I/O station in the DCS and transmitting the working operation state parameters to the first counting functional block, wherein the DCS comprises a plurality of physical I/O stations, and each physical I/O station comprises a plurality of I/O cards;
the first counting function block is used for recording the failure times of each I/O card according to the working operation state parameters of each I/O card of each physical I/O station, counting the sum of the failure times of all the I/O cards of all the physical I/O stations and transmitting the sum of the failure times to the switching value networking function block;
and the switching value networking function block is used for determining to carry out abnormity alarm or not to carry out abnormity alarm on a physical I/O station in the DCS according to the sum of the failure times.
3. The monitoring device of claim 2, wherein each I/O card is a dual network card, and the Tcard functional block is specifically configured to:
monitoring the connection state of the A network and the B network of each I/O card of each physical I/O station in the DCS system, and transmitting the connection state of the A network and the B network of each I/O card to the first counting function block in a digital signal form through corresponding pins so that the first counting function block records the failure frequency of each I/O card according to the digital signal.
4. The monitoring device according to claim 1, wherein the number of the TNode function blocks is equal to the number of DPU modules in the DCS system, and each DPU module is configured with a corresponding TNode function block;
each TNode function block is used for monitoring faults of the communication modules of the A network and the B network or communication cables of each physical I/O station in the corresponding DPU module and transmitting corresponding fault information to the second counting function block;
the second counting function block is used for counting the failure times of the A network communication module, the B network communication module or the communication cable in each DPU module according to the failure information of the A network communication module, the B network communication module or the communication cable of each physical I/O station in each DPU module transmitted by each TNode function block, and transmitting the failure times to the switching value networking function block;
and the switching value networking function block is used for determining to carry out abnormity alarm or not to carry out abnormity alarm on a DPU module in the DCS according to the failure times.
5. The monitoring device according to claim 1, wherein the number of the TDPU function blocks is equal to the number of DPU modules in the DCS system, and each DPU module is configured with a corresponding TDPU function block;
each TDPU functional block is used for monitoring the CPU temperature, the CUP load rate and the CUP memory utilization rate of the corresponding DPU module and transmitting the monitored CPU temperature, the CUP load rate and the CUP memory utilization rate to the analog quantity internet access functional block;
correspondingly, the analog quantity internet function block is used for:
and comparing the CPU temperature, the CUP load rate and the CPU memory utilization rate of each DPU module with corresponding first threshold values, if the CPU temperature, the CUP load rate and the CPU memory utilization rate exceed the first threshold values, alarming, and otherwise, not alarming.
6. The monitoring device of claim 1, wherein the number of TUDH function blocks is equal to the number of UDH modules in the DCS system, and each UDH module is configured with a corresponding TUDH function block;
each TUDH function block is used for monitoring the load rates of the network A and the network B of the corresponding UDH module and the network connection states of the network A and the network B, transmitting the load rates of the network A and the network B of the UDH module to the analog quantity network surfing function block and transmitting the network connection states of the network A and the network B of the UDH module to the switching quantity network surfing function block;
the analog quantity network access function block is used for comparing the load rates of the network A and the network B of each UDH module with corresponding second threshold values, and alarming if the load rates exceed the second threshold values;
and the switching value network-accessing function block is used for determining whether to alarm or not according to the network connection state of the network A and the network B of each UDH module.
7. The monitoring device according to claim 1, wherein the internet access function block is further configured to display abnormality alarm information of the hardware modules corresponding to the monitoring function blocks of the same type in the same alarm list.
8. The monitoring device of claim 1, further comprising an analog selection function;
the analog quantity selection function block is used for calculating a deviation value between a thermal parameter measured at each thermal measurement point of the redundant configuration and a normal reference thermal parameter, and if the deviation value is larger than a preset range, an abnormal instruction is sent to the network access function block, wherein a plurality of thermal measurement points are redundantly configured for specific thermal equipment in the DCS;
and the internet access function block is used for carrying out corresponding abnormity alarm according to the abnormity instruction.
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| CN111963265B (en) * | 2020-08-25 | 2023-02-14 | 鄂尔多斯市君正能源化工有限公司热电分公司 | Method for coordinated control optimization of combustion process and unit of boiler for power generation |
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