CN108762237B - Spare part detection system of distributed control system - Google Patents
Spare part detection system of distributed control system Download PDFInfo
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- CN108762237B CN108762237B CN201810620905.7A CN201810620905A CN108762237B CN 108762237 B CN108762237 B CN 108762237B CN 201810620905 A CN201810620905 A CN 201810620905A CN 108762237 B CN108762237 B CN 108762237B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
- G05B23/0213—Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
Abstract
The invention relates to a spare part detection system of a distributed control system. The system comprises: the detection unit, the detection unit includes the detection return circuit that each spare part installation mechanism constitutes, test platform and detection unit communication are connected to dispose the detection logic that waits to detect the spare part, the detection unit waits to detect the spare part through spare part installation mechanism installation, test platform passes through the operation of the detection return circuit of corresponding detection logic control, gathers the operating parameter who waits to detect the spare part, outputs each detection result who waits to detect the spare part. According to the technical scheme, the performance parameter detection can be carried out before the spare part is installed on the distributed control system, so that the loss caused by the fact that the spare part is damaged and installed on the distributed control system is avoided.
Description
Technical Field
The invention relates to the technical field of thermal control measurement in the power industry, in particular to a spare part detection system of a distributed control system.
Background
With the increase of the operation life of a distributed control system in a production field, the problems that the failure rate is increased, the performance is reduced after hardware is gradually aged, and spare parts need to be replaced are faced. As the spare parts in the stock, the spare parts are relatively short in purchase time and relatively long in storage time, are easily influenced by external factors such as environmental temperature, humidity and the like, have certain influence on the performance of the spare parts for a long time, and the performance quality of the spare parts is difficult to guarantee. When a field distributed control system fails, corresponding hardware must be replaced urgently because a unit is in an operation stage, and if unreliable spare parts are replaced online in the operation of the unit, various unpredictable accidents can be caused, and serious threats are brought to safety production.
Disclosure of Invention
Therefore, it is necessary to provide a spare part detection system of a distributed control system for solving the problem that the performance of the spare part cannot be detected in an emergency.
A spare part detection system for a distributed control system, the system comprising:
the detection unit comprises a detection loop consisting of all spare part mounting mechanisms;
the test platform is in communication connection with the detection unit and is provided with detection logic of the spare part to be detected;
the detection unit is used for installing the spare part to be detected through the spare part installation mechanism; the test platform controls the operation of the detection loop through corresponding detection logic, collects the operation parameters of the spare parts to be detected and outputs the detection results of the spare parts to be detected.
The spare part detection system of the distributed control system is provided with the detection unit, the detection unit is a detection loop formed by each spare part installation mechanism, the detected spare parts can be installed in the spare part installation mechanisms and can also be installed with the spare parts to be detected to form the detection loop with complete functions, the test platform sets corresponding detection logics for the detection loop, and the test platform acquires various operation parameters of the detection loop and analyzes the operation parameters to obtain the detection result of the spare parts to be detected when the detection loop operates.
In one embodiment, the spare part mounting mechanism comprises: the device comprises a DPU mounting mechanism, a first communication card mounting mechanism, a second communication card mounting mechanism, an input/output card mounting mechanism and an input/output terminal board mounting mechanism; the DPU installation mechanism, the first communication card installation mechanism, the output terminal board installation mechanism, the input card installation mechanism, the second communication card installation mechanism and the DPU installation mechanism are sequentially connected to form the detection loop.
In one embodiment, the detection logic comprises: DPU detection logic; installing DPUs to be detected in the DPU installation mechanisms, installing normal spare parts in the other spare part installation mechanisms correspondingly, mirroring the logic configuration in the main DPUs of the distributed control system to the DPUs to be detected through the test platform, switching the DPUs to be detected into main DPUs of the detection unit, and running the detection loop through the DPU detection logic; the test platform also collects the operation data of the detection loop to generate a DPU detection result.
In one embodiment, the detection circuit further comprises: a power module mounting mechanism; the power module mounting mechanism is respectively connected with the power module mounting mechanism, the first communication card mounting mechanism, the second communication card mounting mechanism, the input/output card mounting mechanism and the input/output terminal board mounting mechanism and supplies power to the power module mounting mechanism, the first communication card mounting mechanism, the second communication card mounting mechanism, the input/output card mounting mechanism and the input/output terminal board mounting mechanism; the detection logic comprises: a power module detection logic; a power module to be detected is installed in the power module installation mechanism, normal spare parts are installed in the other spare part installation mechanisms correspondingly, and the detection loop is operated under the power supply of the power module to be detected; the test platform also collects the operation data of the detection loop to generate a detection result of the power module.
In one embodiment, the method further comprises the following steps: an I/O rail box; the I/O guide rail box comprises a first sub-station and a second sub-station; the first substation and the second substation both comprise a plurality of card slots, and the first communication card mounting mechanism is arranged in the card slot of the first substation; and the second communication card mounting mechanism is arranged in the card slot of the second substation.
In one embodiment, the method further comprises the following steps: an I/O rail box; the I/O guide rail box comprises a first sub-station and a second sub-station; the first substation and the second substation both comprise a plurality of card slots, and the first communication card mounting mechanism is arranged in the card slot of the first substation; and the second communication card mounting mechanism is arranged in the card slot of the second substation.
In one embodiment, the detection logic comprises: input/output card detection logic; the input/output card mounting mechanism is arranged in each of the card slot of the first substation and the card slot of the second substation; the input card mounting mechanism is used for mounting an input card to be detected; the output clamping piece mounting mechanism is used for mounting an output clamping piece to be detected, and normal spare parts are mounted in the other spare part mounting mechanisms correspondingly; the detection loops are operated through the input/output card detection logic respectively; the test platform also collects the operation data of the detection loop and respectively generates the detection results of the input/output card.
In one embodiment, the detection logic further comprises: terminal block detection logic; the input/output terminal board mounting mechanisms are arranged in the card slot of the first substation and the card slot of the second substation; an input terminal board to be detected is installed in the input terminal board installation mechanism, or an output terminal board to be detected is installed in the output terminal board installation mechanism; normal spare parts are installed in the other spare part installation mechanisms correspondingly; the detection loops are operated through the input/output terminal board detection logic respectively; the test platform also collects the operation data of the detection loop and respectively generates the detection results of the input/output terminal board.
In one embodiment, the detection circuit comprises: a switching value detection circuit and an analog value detection circuit; the input/output card includes: the switching value input clamping piece, the switching value output clamping piece, the analog value input clamping piece and the analog value output clamping piece are arranged in the circuit board; the input/output terminal board includes: the switch value input terminal board, the switch value output terminal board, the analog value input terminal board and the analog value output terminal board.
In one embodiment, the detection unit further comprises a detection open circuit formed by each spare part installation mechanism; and the test platform controls the detection open circuit to operate through corresponding detection logic, acquires the operation parameters of the spare parts to be detected and outputs the detection results of the spare parts to be detected.
Drawings
FIG. 1 is a schematic diagram of a system for detecting spare parts of a distributed control system according to an embodiment;
FIG. 2 is a schematic diagram of a detection circuit according to an embodiment;
FIG. 3 is a schematic block diagram of an I/O rail box in one embodiment;
fig. 4 is a schematic diagram of a hardware configuration of a spare part detection system of the distributed control system in an embodiment.
Detailed Description
In order to further explain the technical means and effects of the present invention, the following description will be made for clear and complete descriptions of the technical solutions of the embodiments of the present invention with reference to the accompanying drawings and preferred embodiments.
In one embodiment, as shown in fig. 1, a schematic diagram of a spare part detection system of a distributed control system is provided, the system including: the detection unit 100, the detection unit 100 includes a detection loop 120 composed of each spare part installation mechanism 110; the testing platform 200 is in communication connection with the detecting unit 100, and is configured with a detecting logic 210 of a spare part to be detected; the detection unit 100 installs the spare part to be detected through the spare part installation mechanism 110, the test platform 200 controls the operation of the detection circuit 120 through the detection logic 310 corresponding to the spare part to be detected, and the test platform 200 collects the operation parameters of the spare part to be detected, generates and outputs the detection result of the spare part to be detected.
The spare part detection system of the distributed control system is provided with the detection unit, the detection unit is a detection loop formed by each spare part installation mechanism, the detected spare parts can be installed in the spare part installation mechanisms and can also be installed with the spare parts to be detected to form the detection loop with complete functions, the test platform sets corresponding detection logics for the detection loop, and the test platform acquires various operation parameters of the detection loop and analyzes the operation parameters to obtain the detection result of the spare parts to be detected when the detection loop operates.
A distributed Control system is abbreviated as DCS (distributed Control system), and in operation, all components in the DCS system are designed to implement a certain function, and in order to cope with damage to components in the DCS system, these components usually store a plurality of identical spare parts in a warehouse for standby, and when a component in the DCS system fails, the failed component may be replaced with the spare part.
In an embodiment, the spare part detection system may adopt a hardware environment and a software environment that are the same as those of the DCS system, and in terms of hardware, the spare part detection system may be installed in a cabinet that is the same as the DCS system. In addition, by developing the detection software in the Shanghai Xinhua control system, different detection software can be developed for different spare parts so as to execute each detection logic to be detected and realize the performance detection of different spare parts to be detected. And then, acquiring the operation parameters through the test platform to generate a detection result.
In another embodiment, each component in the DCS system generally adopts a redundant structure, that is, each component is configured with a redundant component, taking the DPU as an example, a main DPU and a standby DPU are configured in the DCS system, when the main DPU works normally, the standby DPU works along with the main DPU, and when the main DPU fails, the standby DPU replaces the failed main DPU to become a new main DPU. Through the processing, the test process can be simplified, and meanwhile, the environment of the DCS during working is simulated, so that the detection effect is effectively improved.
In one embodiment, the spare part mounting mechanism comprises: the device comprises a DPU mounting mechanism, a first communication card mounting mechanism, a second communication card mounting mechanism, an input/output card mounting mechanism and an input/output terminal board mounting mechanism; the detection circuit is formed by sequentially connecting a DPU mounting mechanism 301, a first communication card mounting mechanism 302, an output card mounting mechanism 303, an output terminal board mounting mechanism 304, an input terminal board mounting mechanism 305, an input card mounting mechanism 306, a second communication card mounting mechanism 307, and the DPU mounting mechanism 301, as shown in fig. 2. Corresponding spare parts can be installed on corresponding spare part installation mechanisms to realize corresponding functions.
In one embodiment, the detection loop comprises: a switching value detection circuit and an analog value detection circuit; the input/output card includes: the switching value input clamping piece, the switching value output clamping piece, the analog value input clamping piece and the analog value output clamping piece are arranged in the circuit board; the terminal plate includes: the switch value input terminal board, the switch value output terminal board, the analog value input terminal board and the analog value output terminal board.
The switching value detection circuit and the analog value detection circuit will be described below.
Switching value detection circuit:
in one embodiment, in order to realize the detection of the DPU spare parts, firstly, a DPU detection logic needs to be set in a test platform, then, a DPU to be detected is installed in a DPU installation mechanism, normal spare parts are installed in other spare part installation mechanisms, then, a detection loop is subjected to power-on test, the DPU to be detected is subjected to copy test through the corresponding DPU detection logic in the test platform, and the test platform performs analysis to generate a DPU detection result by collecting operation data in a test process.
Specifically, when detecting the DPU spare part, static detection and dynamic detection can be adopted, and the static detection is to detect the appearance, the internal wiring and the jumper wire of the DPU spare part and the firmness of each connecting piece. The dynamic detection is mainly used for power-on test of the DPU spare parts, and the embodiment mainly aims at the dynamic detection. After the detection loop is connected, the functions of other spare parts in the default detection loop are complete, the operation mode of the detection loop is set by setting DPU detection logic, and then the operation data of the detection loop is detected through the test platform, so that whether the functions of the DPU to be detected are complete or not can be judged.
In one embodiment, the DPU detection logic may perform configuration of the measurement points in all I, O components by using a DPU to be detected, collect data for all the measurement points, select a suitable detection period during detection, set all channels of the output card to "1" and maintain under the control of the configuration of the DPU to be detected in one detection period, determine whether the states of the channels of the output card are consistent with the states of the channels corresponding to the input card, and if so, accumulate an error value of + 1; and then, setting all channels of the output clamping piece to be 0 and keeping the channels, judging whether the states of the channels of the output clamping piece and the corresponding channels of the input clamping piece are consistent, and if so, accumulating an error value plus 1. And acquiring the value of the accumulated error value after a certain detection time, and if the accumulated error value is 0, determining that the DPU to be detected is qualified.
In one embodiment, the detection circuit further comprises: power module installation mechanism, power module installation mechanism connect power module installation mechanism, first communication card installation mechanism, second communication card installation mechanism, input/output fastener installation mechanism and input/output terminal board installation mechanism respectively to for its power supply detect the logic and include: a power module detection logic; a power module to be detected is installed in the power module installation mechanism, normal spare parts are installed in the other spare part installation mechanisms correspondingly, and the detection loop is operated under the power supply of the power module to be detected; the test platform also collects the operation data of the detection loop to generate a detection result of the power module.
Specifically, the power supply module may include 5V and ± 15V common power supplies, 24V power supplies, and 48V power supplies. Wherein, the 5V and the +/-15V common power supply can provide working power supply for the input/output card, the 24V power supply can provide working power supply for the analog quantity terminal board, and the 48V power supply can provide switching signal inquiry power supply for the switching value input terminal board. For the detection of the power supply module, static detection and dynamic detection can also be adopted, the appearance and power-on measurement of the main power supply module are statically detected, the appearance detection mainly comprises the integrity of the appearance and the firmness among components, the power-on measurement mainly detects the output performance of the power supply module, and the output voltage requirements of each power supply module are shown in table 1:
TABLE 1
If the power-on test result meets the requirements in table 1, dynamic test can be further performed, during dynamic test, the power module to be detected can be accessed into the test loop, the working mode of the test loop is determined by setting the power module detection logic, and the state of the power module only needs to be checked through long-time working, so that the DPU detection logic can be preferably adopted to enable the detection loop to work, and the detection result of the power module is obtained.
In an embodiment, the spare part detection system may include an I/O guideway box having the same distributed control system, and the I/O guideway box may include a first sub-station and a second sub-station, and it should be noted that the number of the setting sub-stations may be set according to a requirement during detection.
In one embodiment, the first sub-station and the second sub-station each include a plurality of card slots, various cards can be mounted through the card slots, a first communication card mounting mechanism can be disposed in the card slot of the first sub-station, and a second communication card mounting mechanism can be disposed in the card slot of the second sub-station.
In another embodiment, as shown in fig. 3, the first and second substations each include 7 card slots, the card slots of the first substation being numbered 1, 2, 3, 4, 5, 6, 7, respectively; the 7 card slots of the second substation are numbered 8, 9, 10, 11, 12, 13, 14 in sequence.
On this basis, the first communication card and the second communication card can both adopt a redundant structure, namely the first communication card consists of two BCnet cards, and the second communication card also consists of two BCnet cards. Two BCnet cards of the first communication card are installed in the card slots with the serial numbers of 6 and 7 of the first substation, and two BCnet cards of the second communication card are installed in the card slots with the serial numbers of 13 and 14 of the second substation.
In an embodiment, the detection logic further comprises: communication card detection logic, wherein the first communication card mounting mechanism and the second communication card mounting mechanism are provided with communication cards to be detected, and other spare part mounting mechanisms are correspondingly provided with normal spare parts; the test platform switches the communication card to be detected into a master control communication card, and a detection loop is operated through communication card detection logic; the test platform also collects the operation data of the detection loop to generate a detection result of the communication card.
Specifically, the communication card to be detected can be installed in the first communication card installation mechanism or the second communication card installation mechanism, the communication card to be detected is lifted to be the master control communication card, in addition, the other spare part installation mechanisms in the detection loop are all provided with normal components, the detection loop is controlled to work according to a preset working mode through the communication card detection logic, the operation parameters of the detection loop are collected through the test platform, and therefore the detection result of the communication card to be detected is obtained through analysis.
In another embodiment, the functional circuit is provided with two groups of communication card components, 4 BCnet cards are respectively installed in 6, 7, 13 and 14 card slots, the BCnet card to be detected can be replaced by the BCnet card in one card slot, then the BCnet card to be detected is upgraded to the master control communication card, and then the detection circuit is formed to realize the detection of the communication card.
In another embodiment, the communication card may also adopt a dynamic detection mode, and for the communication card detection logic, the working mode of the detection loop is determined, the communication card is used for data transmission, and in the detection loop, the state of each input/output card can be transmitted to other input/output cards, so that when the communication card detection logic is set, only by whether the data transmission of each detection point of the whole detection loop is normal or not when the detection loop works.
Optionally, the communication card detection logic may be the same as the DPU detection logic, or may perform detection in the following manner: the output quantity set to be 1 of the output card is set through the configuration function of the DPU, then the state of each input/output card collected by the communication card is collected through the DPU, and whether the function of the communication card is normal or not can be judged through configuration analysis.
In one embodiment, the detection logic comprises: input/output card detection logic, the spare part detection system can also execute detection of the input/output card, and the card slot of the first sub-station and the card slot of the second sub-station can be provided with the input/output card installation mechanism; it is worth to be noted that, since the output card and the output card are matched, the input card mounting mechanism and the output card mounting mechanism can be respectively arranged in the first sub-station and the second sub-station.
Specifically, when the input/output card is detected, the input card to be detected is installed in the input card installation mechanism, the output card to be detected is installed in the output card installation mechanism, and normal spare parts are installed in the detection loop in correspondence with other spare part installation mechanisms. And then, an input/output card detection logic operation detection loop is used, and the test platform acquires operation data of the detection loop to respectively generate input/card detection results.
In another embodiment, the detection principle of the input card and the output card is consistent, when the input/output card detection logic is set, the DPU detection logic can be adopted, the output value "1" of the output card can also be set through the configuration function of the DPU, then the state of each input/output card collected by the communication card is collected through the DPU, and whether the function of the input/output card is normal or not can be judged through configuration analysis.
In an embodiment, the detection logic further comprises: input/output terminal board detection logic; the spare part detection system can also execute the detection of the input/output terminal board, and input/output terminal board mounting mechanisms can be arranged in the card slot of the first sub-station and the card slot of the second sub-station; when the input terminal board or the output terminal board is detected, the input terminal board to be detected can be installed in the input terminal board installation mechanism, or the output terminal board to be detected can be installed in the output terminal board installation mechanism.
Specifically, when the input/output terminal board is detected, the input/output terminal board to be detected can be correspondingly installed in the card slot of the first substation or the second substation, the input/output terminal board needs to be installed in cooperation with the input/output card, and normal spare parts are installed in the detection circuit in correspondence with other spare part installation mechanisms. And then detecting a logic operation detection loop through the input/output terminal board, acquiring operation data of the detection loop through the test platform, and respectively generating input/card detection results.
In another embodiment, the input terminal board and the output terminal board are identical in detection principle, and the input/output terminal is used for connecting the input card with the output card in the detection circuit, so that when the input/output terminal board detection logic is set, the input/output terminal board detection logic can be set to be identical with the input/output card detection logic. The output value of the output clamping piece is set to be 1 through the DPU detection logic and the configuration function of the DPU, the state of each input/output clamping piece collected by the communication card is collected through the DPU, and whether the function of the input/output terminal board is normal or not can be judged through configuration analysis.
Analog quantity detection circuit:
it should be noted that the analog quantity detection circuit and the switching value detection circuit have the same structure, except that the input/output cards in the analog quantity detection circuit are analog quantity input/output cards, the input/output terminal boards are analog quantity input/output terminal boards, the input/output cards in the switching value detection circuit are switching value input/output cards, and the input/output terminal boards are switching value input/output terminal boards.
Due to the difference of the analog quantity and the digital quantity, when setting the DPU detection logic, the ranges of the input card and the output card can be set to be 0-100, when the DPU detection is carried out, a random number in the output holding range of each channel of the output card is set under the configuration control of the DPU, then whether the difference value between the numerical value output by the channel corresponding to the input card and the random number output by each channel of the output card is within a preset range is compared one by one, the preset range can be selected to be 0.01, if not, the error accumulated value is plus 1, after the detection of the preset time is carried out, if the error accumulated value is 0, the DPU to be detected is normal.
As for the detection of other spare parts, the detection logic consistent with the DPU detection logic can also be adopted, so that the detection of other spare parts is realized.
In one embodiment, the detection unit further comprises a detection open circuit formed by each spare part installation mechanism; the test platform controls the detection of open-circuit operation through corresponding detection logic, collects the operation parameters of the spare parts to be detected and outputs the detection results of the spare parts to be detected.
In this embodiment, a detection method provided for a spare part that cannot be added to a detection loop is used to detect the spare part that cannot be detected by the detection loop by using a set detection open circuit.
In one embodiment, the spare parts that can be detected by detecting an open circuit include an LC card, a thermocouple terminal board, a thermal resistance terminal board, and the like, all of which can be detected by detecting an open circuit.
When open-loop detection of open circuit detection is carried out, the open circuit detection is also required by the assembly, when required components are connected, the components can comprise a DPU (digital data processing) unit, an input/output clamping piece, an input/output terminal board, a communication card and spare parts (LC (inductance capacitance) cards, thermocouple terminal boards, thermal resistor terminal boards and the like) to be detected, by taking a thermal resistor terminal board as an example, configuration is carried out by the DPU, due to open-loop detection, a standard signal needs to be injected into each channel of the terminal board one by one through a signal generator, the display value of each channel is recorded, and whether the detection is qualified or not is judged through the error between the standard. The detection principle of other spare parts is similar to that, and the description is omitted again.
In an embodiment, as shown in fig. 3, which is a schematic diagram of a hardware configuration structure of a spare part detection system of a distributed control system, the hardware configurations of the spare part detection system are all installed in a cabinet, and a power module box 401, a host DPU rail box 402, an I/O rail box 403, a power switch box 404, a terminal board installation mechanism 405, and the like are sequentially installed in the cabinet from top to bottom. Various power modules are installed in the power module box 401, and a main DPU and a standby DPU are installed in the main DPU guide rail box 402. The I/O track box 403 includes a first sub-station and a second sub-station, the first sub-station and the second sub-station each including a plurality of card slots for mounting input/output cards or communication cards. The power switch box 404 is used to supply a voltage of 220V, and the terminal board mounting mechanism 405 is used to mount a terminal board.
In one embodiment, the test platform is used as a man-machine interface, has all functions of an engineer station and an operator station, can be realized by adopting a new generation of industrial personal computer, a Windows 2000 or high-version system is installed on the industrial personal computer, the software platform can select a Shanghai Xinhua control system, the test software is developed on the software platform, the test software of each spare part can be designed into a functional module, and the functional module can automatically execute the detection of the spare part and automatically generate a detection result.
In addition, in an embodiment, because the spare part detection system and the DCS system have the same hardware configuration, when a field fault of the DCS system is queried, the logic configuration in the DPU of the DCS system can be mirrored into the DPU of the spare part detection system, and then the same card configuration as the DCS system is adopted to simulate the field condition, so as to quickly determine the fault condition.
Furthermore, during power production, the logic configuration in the DPU often needs to be replaced, and some unexpected events may occur when the DCS system runs a new logic configuration, so that the new logic configuration can be copied to the spare part detection system first, and then the same card in the production field is set, so as to simulate the production situation in the field in advance.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A spare part detection system for a distributed control system, the system comprising:
the detection unit comprises a detection loop consisting of all spare part mounting mechanisms;
the test platform is in communication connection with the detection unit and is provided with detection logic of the spare part to be detected;
the detection unit is used for installing the spare part to be detected through the spare part installation mechanism; the test platform controls the operation of the detection loop through corresponding detection logic, acquires the operation parameters of the spare parts to be detected and outputs the detection result of each spare part to be detected;
the spare parts to be detected serve as redundant parts of corresponding parts in the functional circuit, the spare parts to be detected are lifted to be main control through the test platform, so that the detection circuit is formed, and the functional circuit can achieve a certain function of the distributed control system.
2. A spare part detection system of a distributed control system as claimed in claim 1, wherein the spare part mounting mechanism comprises: the device comprises a DPU mounting mechanism, a first communication card mounting mechanism, a second communication card mounting mechanism, an input/output card mounting mechanism and an input/output terminal board mounting mechanism;
the DPU installation mechanism, the first communication card installation mechanism, the output terminal board installation mechanism, the input card installation mechanism, the second communication card installation mechanism and the DPU installation mechanism are sequentially connected to form the detection loop.
3. A spare part detection system for a distributed control system according to claim 2, wherein the detection logic comprises: DPU detection logic;
installing DPUs to be detected in the DPU installation mechanisms, installing normal spare parts in the other spare part installation mechanisms correspondingly, mirroring the logic configuration in the main DPUs of the distributed control system to the DPUs to be detected through the test platform, switching the DPUs to be detected into main DPUs of the detection unit, and running the detection loop through the DPU detection logic;
the test platform also collects the operation data of the detection loop to generate a DPU detection result.
4. A spare part detection system for a distributed control system according to claim 2, wherein said detection circuit further comprises: a power module mounting mechanism; the power module mounting mechanism is respectively connected with the power module mounting mechanism, the first communication card mounting mechanism, the second communication card mounting mechanism, the input/output card mounting mechanism and the input/output terminal board mounting mechanism and supplies power to the power module mounting mechanism, the first communication card mounting mechanism, the second communication card mounting mechanism, the input/output card mounting mechanism and the input/output terminal board mounting mechanism; the detection logic comprises: a power module detection logic;
a power module to be detected is installed in the power module installation mechanism, normal spare parts are installed in the other spare part installation mechanisms correspondingly, and the detection loop is operated under the power supply of the power module to be detected;
the test platform also collects the operation data of the detection loop to generate a detection result of the power module.
5. A spare part detection system of a distributed control system according to claim 2, further comprising: an I/O rail box; the I/O guide rail box comprises a first sub-station and a second sub-station;
the first substation and the second substation both comprise a plurality of card slots, and the first communication card mounting mechanism is arranged in the card slot of the first substation; and the second communication card mounting mechanism is arranged in the card slot of the second substation.
6. A spare part detection system for a distributed control system according to claim 5, wherein the detection logic further comprises: communication card detection logic;
the first communication card mounting mechanism and the second communication card mounting mechanism are internally provided with communication cards to be detected, and normal spare parts are correspondingly mounted in other spare part mounting mechanisms;
the test platform switches the communication card to be detected into a master control communication card, and the detection loop is operated through the communication card detection logic;
the test platform also collects the operation data of the detection loop to generate a detection result of the communication card.
7. A spare part detection system for a distributed control system according to claim 5, wherein the detection logic comprises: input/output card detection logic;
the input/output card mounting mechanism is arranged in each of the card slot of the first substation and the card slot of the second substation;
the input clamping piece mounting mechanism is used for mounting an input clamping piece to be detected, or the output clamping piece mounting mechanism is used for mounting an output clamping piece to be detected; normal spare parts are installed in the other spare part installation mechanisms correspondingly;
the detection loops are operated through the input/output card detection logic respectively; the test platform also collects the operation data of the detection loop and respectively generates the detection results of the input/output card.
8. A spare part detection system for a distributed control system according to claim 5, wherein the detection logic further comprises: input/output terminal board detection logic;
the input/output terminal board mounting mechanisms are arranged in the card slot of the first substation and the card slot of the second substation;
an input terminal board to be detected is installed in the input terminal board installation mechanism, or an output terminal board to be detected is installed in the output terminal board installation mechanism; normal spare parts are installed in the other spare part installation mechanisms correspondingly;
the detection loops are operated through the input/output terminal board detection logic respectively; the test platform also collects the operation data of the detection loop and respectively generates the detection results of the input/output terminal board.
9. A spare part detection system for a distributed control system according to any one of claims 2 to 8, wherein the detection circuit comprises: a switching value detection circuit and an analog value detection circuit; the input/output card includes: the switching value input clamping piece, the switching value output clamping piece, the analog value input clamping piece and the analog value output clamping piece are arranged in the circuit board; the terminal plate includes: the switch value input terminal board, the switch value output terminal board, the analog value input terminal board and the analog value output terminal board.
10. A spare part detection system of a distributed control system according to claim 1, wherein said detection unit further comprises a detection open circuit made up of respective spare part mounting mechanisms;
and the test platform controls the detection open circuit to operate through corresponding detection logic, acquires the operation parameters of the spare parts to be detected and outputs the detection results of the spare parts to be detected.
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| US9222867B2 (en) * | 2011-01-05 | 2015-12-29 | Brian L. Norling | Resonant micromachined biochemical sensor |
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