CN110045210A - Functional safety detection method, device, functional safety module and detection system - Google Patents
Functional safety detection method, device, functional safety module and detection system Download PDFInfo
- Publication number
- CN110045210A CN110045210A CN201910403188.7A CN201910403188A CN110045210A CN 110045210 A CN110045210 A CN 110045210A CN 201910403188 A CN201910403188 A CN 201910403188A CN 110045210 A CN110045210 A CN 110045210A
- Authority
- CN
- China
- Prior art keywords
- area
- functional safety
- detection
- program
- functional
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 257
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000004891 communication Methods 0.000 claims abstract description 11
- 238000005192 partition Methods 0.000 claims description 5
- 238000012360 testing method Methods 0.000 abstract description 2
- 230000003993 interaction Effects 0.000 description 26
- 230000002159 abnormal effect Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 10
- 230000008439 repair process Effects 0.000 description 4
- 238000000638 solvent extraction Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013497 data interchange Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
- G11C29/04—Detection or location of defective memory elements, e.g. cell constructio details, timing of test signals
- G11C29/08—Functional testing, e.g. testing during refresh, power-on self testing [POST] or distributed testing
- G11C29/12—Built-in arrangements for testing, e.g. built-in self testing [BIST] or interconnection details
- G11C29/38—Response verification devices
- G11C29/42—Response verification devices using error correcting codes [ECC] or parity check
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Alarm Systems (AREA)
Abstract
This application provides a kind of functional safety detection method, device, functional safety module and detection systems.The functional safety detection method includes the following steps as performed by first control unit: receiving the control instruction for being used for startup function security module；Determine the first object Free Region of the first ram space；Communication connection is established with electrical equipment, obtains the operating parameter of electrical equipment needed for executing preset functional safety program；Receive functional safety parameter needed for executing functional safety program；Operating parameter and functional safety parameter are stored in first object Free Region；Functional safety program is executed according to operating parameter and functional safety parameter, to detect to the corresponding functional safety of electrical equipment, and exports the first testing result.This method can avoid again authenticating functional safety program when electrical equipment control program upgrading, and can guarantee the reliability of functional safety detection.
Description
Technical Field
The invention relates to the field of functional safety, in particular to a functional safety detection method, a functional safety detection device, a functional safety module and a detection system.
Background
The electrical equipment needs to frequently perform function safety detection, in the prior art, when the electrical equipment performs function safety detection, a detection method with function safety program participation generally embeds the function safety program into a control program of the electrical equipment, then detects the function safety of the electrical equipment based on a hardware platform of the electrical equipment, and as the function safety program needs to be authenticated by a special authentication mechanism and accords with corresponding indexes, corresponding function safety detection can be performed, so that the control program of the electrical equipment needs to be authenticated once per liter, and more cost is consumed.
Disclosure of Invention
Based on the problems in the prior art, the invention provides a functional safety detection method, a functional safety detection device, a functional safety module and a detection system.
The invention provides a functional safety detection method, which is applied to a functional safety module in a functional safety detection system, wherein the functional safety detection system also comprises an electrical device which can communicate with the functional safety module, the functional safety module comprises a first control unit and a first RAM space, and the functional safety detection method comprises the following steps executed by the first control unit:
receiving a control instruction for starting the functional safety module;
determining a first target available area of the first RAM space;
establishing communication connection with the electrical equipment, and acquiring operation parameters of the electrical equipment required by executing a preset functional safety program;
receiving functional security parameters required for executing the functional security program;
storing the operating parameters and the functional safety parameters in the first target available area;
and executing the functional safety program according to the operating parameters and the functional safety parameters so as to detect the functional safety corresponding to the electrical equipment and output a first detection result.
Further, the step of determining a first target available region of the first RAM space comprises:
a first area and a second area are arranged in the first RAM space;
detecting the first area in real time according to a preset RAM detection program;
when the first area is detected to be the available area within the preset time, marking the first area as the first target available area, and detecting the second area in real time according to the RAM detection program;
and when the second area is detected to be the available area within the preset time, marking the second area as the first target available area and returning to the step of detecting the first area in real time according to a preset RAM detection program.
Further, the functional safety module further includes a second control unit and a second RAM space, and the following steps executed by the second control unit are further included after the step of executing the functional safety program according to the operation parameter and the functional safety parameter to detect functional safety corresponding to the electrical device and output a first detection result:
determining a second target available area of the second RAM space;
receiving the operation parameters and the functional safety parameters sent by the first control unit, and storing the operation parameters and the functional safety parameters in the second target available area;
executing the functional safety program according to the operating parameters and the functional safety parameters to detect the functional safety corresponding to the electrical equipment and output a second detection result;
receiving the first detection result and storing the first detection result in the second target available area;
and comparing the first detection result with the second detection result to obtain a first comparison result.
Further, the step of determining a second target available area of the second RAM space comprises:
a third area and a fourth area are arranged in the second RAM space;
detecting the third area in real time according to a preset RAM detection program;
when the third area is detected to be the available area within the preset time, marking the third area as the second target available area, and detecting the fourth area in real time according to the RAM detection program;
and when the fourth area is detected to be an available area within a preset time, marking the fourth area as the second target available area and returning to the step of detecting the third area in real time according to a preset RAM detection program.
Further, after the step of executing the functional safety program according to the operating parameter and the functional safety parameter to detect functional safety corresponding to the electrical device and output a second detection result, the method further includes the following steps executed by the first control unit:
receiving the second detection result and storing the second detection result in the first target available area;
and comparing the first detection result with the second detection result to obtain a second comparison result.
The invention also proposes a functional safety detection device, applied to a functional safety module in a functional safety detection system, the functional safety detection system further comprising an electrical apparatus communicable with the functional safety module, wherein the functional safety module comprises a first control unit and a first RAM space, the functional safety detection device comprises a first detection device disposed in the first control unit, the first detection device comprises:
the first receiving unit is used for receiving a control instruction for starting the functional safety module;
a first obtaining unit, configured to determine a first target available area of the first RAM space;
the second acquisition unit is used for establishing communication connection with the electrical equipment and acquiring the operating parameters of the electrical equipment required by executing the preset functional safety program;
a second receiving unit, configured to receive a functional security parameter required for executing the functional security program;
the storage unit is used for storing the operating parameters and the functional safety parameters in the first target available area;
the first execution unit is used for executing the functional safety program according to the operation parameters and the functional safety parameters so as to detect the functional safety corresponding to the electrical equipment and output a first detection result; wherein,
the first acquisition unit includes:
the first partition module is used for opening a first area and a second area in the first RAM space;
the first detection module is used for detecting the first area in real time according to a preset RAM detection program;
the first marking module is used for marking the first area as the first target available area when the first area is detected to be the available area within preset time, and detecting the second area in real time according to the RAM detection program;
and the second marking module is used for marking the second area as the first target available area and returning to the step of detecting the first area in real time according to a preset RAM detection program when the second area is detected to be the available area within preset time.
Further, the functional safety module further includes a second control unit and a second RAM space, and the functional safety detection apparatus further includes a second detection apparatus configured in the second control unit, wherein the second detection apparatus includes:
a third obtaining unit, configured to determine a second target available area of the second RAM space;
a third receiving unit, configured to receive the operation parameter and the functional safety parameter sent by the first control unit, and store the operation parameter and the functional safety parameter in the second target available area;
the second execution unit is used for executing the functional safety program according to the operation parameters and the functional safety parameters so as to detect the functional safety corresponding to the electrical equipment and output a second detection result;
a fourth receiving unit, configured to receive the first detection result and store the first detection result in the second target available area;
the first comparison unit is used for comparing the first detection result with the second detection result to obtain a first comparison result; wherein,
the third acquisition unit includes:
the second partition module is used for opening a third area and a fourth area in the second RAM space;
the second detection module is used for detecting the third area in real time according to a preset RAM detection program;
the third marking module is used for marking the third area as the second target available area when the third area is detected to be the available area within the preset time, and detecting the fourth area in real time according to the RAM detection program;
and the fourth marking module is used for marking the fourth area as the second target available area and returning to the step of detecting the third area in real time according to a preset RAM detection program when the fourth area is detected to be the available area within preset time.
Further, the first detection device further includes:
a fifth receiving unit, configured to receive the second detection result and store the second detection result in the first target available area;
and the second comparison unit is used for comparing the first detection result with the second detection result to obtain a second comparison result.
The invention also provides a functional safety module which comprises any one of the functional safety detection devices.
The invention also provides a functional safety detection system which comprises electrical equipment and any one of the functional safety modules.
The invention has the beneficial effects that: the functional safety program is pre-stored in the functional safety module, and the functional safety module is mutually independent with the electrical equipment, so that the problem that the functional safety program needs to be authenticated again when the control program of the electrical equipment is upgraded is solved. After the functional safety module obtains the functional safety parameters and the operating parameters of the electrical equipment, the functional safety module can execute the functional safety program to test the functional safety corresponding to the electrical equipment. In addition, the operation parameters and the function safety parameters are stored in the target available area, so that the reliability of function safety detection can be ensured.
Drawings
FIG. 1 is a schematic block diagram of a functional security detection system provided by an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a functional security detection method according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart diagram of a functional security detection method according to another embodiment of the present invention;
FIG. 4 is a schematic flow chart diagram of a functional security detection method according to another embodiment of the present invention;
FIG. 5 is a schematic flow chart diagram of a functional security detection method according to yet another embodiment of the present invention;
FIG. 6 is a schematic flow chart diagram of a functional security detection method according to yet another embodiment of the present invention;
FIG. 7 is a schematic block diagram of a functional safety detection apparatus according to an embodiment of the present invention;
FIG. 8 is a schematic block diagram of a functional safety detection apparatus according to another embodiment of the present invention;
fig. 9 is a schematic block diagram of a functional safety detection apparatus according to another embodiment of the present invention.
Detailed Description
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, 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.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
Referring to fig. 1, fig. 1 is a block diagram of a functional safety detection system 102 according to an embodiment of the present invention, where the functional safety detection system 102 includes an electrical device 101 and a functional safety module 11, and the functional safety module 11 includes a first control unit 14, a first RAM space, a first digital quantity input/output interface 13, a keyboard input interface 17, a first SPI data interaction interface 18, a second SPI data interaction interface 12, a second control unit 15, a second RAM space, a second digital quantity input/output interface 16, a display screen interface 20, a third SPI data interaction interface 19, and an encoder interface 21; the first RAM space, the first digital quantity input/output interface 13, the keyboard input interface 17, the first SPI data interaction interface 18 and the second SPI data interaction interface 12 are electrically connected with the first control unit 14; the second RAM space, the second digital quantity input/output interface 16, the display screen interface 20 and the third SPI data interaction interface 19 are electrically connected with the second control unit 15; the first control unit 14 and the second control unit 15 are electrically connected to the encoder interface 21, respectively. The first control unit 14 and the second control unit 15 are in communication connection through a first SPI data interaction interface 18 and a third SPI data interaction interface 19. First control unit 14 is in communication connection with electrical device 101 via second SPI data interchange interface 12.
In the present embodiment, electrical device 101 may be a frequency converter, a drive, or the like.
In the present embodiment, since the functional safety module 11 is independent from the electrical device 101, when the control program of the electrical device 101 is upgraded, it is not necessary to upgrade the functional safety program in the functional safety module 11 at the same time, and the problem that the functional safety program needs to be authenticated again when the control program of the electrical device 101 is upgraded is solved.
In the present embodiment, the first control unit 14 and the second control unit 15 each include a CPU.
Referring to fig. 2, fig. 2 is a schematic flowchart of a functional security detection method, which is applied to a functional security module 11 in a functional security detection system 102 according to an embodiment of the present invention.
As shown in fig. 2, the method comprises steps S101 to S106 performed by the first control unit 14.
S101, receiving a control instruction for starting the functional safety module 11.
In this embodiment, the first control unit 14 first receives a control command from the first digital input/output interface 13, so as to activate the functional safety module 11, and enable the first control unit 14 to start operating.
S102, determining a first target available area of the first RAM space.
In the present embodiment, the first control unit 14 first determines the first target available area of the first RAM space, so that data can be stored in the first target available area in the following.
And S103, establishing communication connection with the electrical equipment 101, and acquiring the operation parameters of the electrical equipment 101 required by executing the preset function safety program.
In the present embodiment, a functional safety program is stored in functional safety module 11 for detecting functional safety of electrical device 101. First control unit 14 establishes communication connection with electrical device 101 through second SPI data interaction interface 12, and obtains operating parameters of electrical device 101. There may be a plurality of functional safety programs for detecting different functional safety of electrical device 101. The operation parameters are one or more real-time operation parameters of electrical device 101, and when a certain function safety program is executed, the operation parameters corresponding to electrical device 101 are obtained, for example, electrical device 101 is a frequency converter, the function safety program is used for detecting the function safety of the output frequency of the frequency converter, and the corresponding operation parameters are the real-time output frequency of the frequency converter. In this embodiment, the functional safety module 11 can not only perform data interaction with the electrical device 101 through the second SPI data interaction interface 12, but also control on/off of a main circuit switch of the electrical device 101 through the second SPI data interaction interface 12.
And S104, receiving functional safety parameters required by the execution of the functional safety program.
In this embodiment, the functional safety parameters correspond to the operating parameters. For example, the electrical device 101 is a frequency converter, the functional safety program is used for detecting functional safety of the output frequency of the frequency converter, the real-time output frequency of the frequency converter is 200Hz, and the functional safety parameter is a safety output frequency of 300 Hz. In this embodiment, the functional safety parameters of the electrical device 101 are input into the first control unit 14 by the operator through the keyboard input interface 17, and it is understood that in other embodiments, the functional safety parameters may be automatically input by the terminal device. In other embodiments, the functional safety parameters may also include a combination of one or more of time, current, voltage, etc.
And S105, storing the operation parameters and the functional safety parameters in a first target available area.
In the present embodiment, the first control unit 14 stores the operating parameter and the functional safety parameter in the first target available area in order to obtain a reliable first detection result when executing the functional safety program.
And S106, executing a function safety program according to the operation parameters and the function safety parameters to detect the function safety corresponding to the electrical equipment 101, and outputting a first detection result.
In this embodiment, the functional safety program obtains a first detection result by comparing the operation parameter with the functional safety parameter, and when the first detection result is that "the operation parameter is greater than the functional safety parameter and the operation parameter of the electrical device 101 is abnormal", the first control unit 14 generates an instruction to turn off the main circuit switch of the electrical device 101 so as to turn off the main circuit switch of the electrical device 101 through the second SPI data interaction interface 12.
In this embodiment, when the first detection result is that "the operation parameter is less than or equal to the function safety parameter, and the operation parameter of electrical device 101 is normal", first control unit 14 generates a result of "electrical device 101 is safe and normal", and electrical device 101 can normally operate according to the result. For example, the electrical device 101 is a frequency converter, the functional safety program is used for detecting functional safety of the output frequency of the frequency converter, the real-time output frequency of the frequency converter is 200Hz, the safety output frequency of the frequency converter is 300Hz, the first control unit 14 compares the real-time output frequency of 200Hz with the safety output frequency of 300Hz when executing the functional safety program to obtain a first detection result that the real-time output frequency is smaller than the safety output frequency, and the real-time output frequency of the frequency converter is normal, and then the first control unit 14 generates a result that the frequency converter is safe and normal. In the present embodiment, the functional safety procedure is repeatedly executed after a preset time interval, which may be 1h, 2h, 3h, etc.
Referring to FIG. 3, in an alternative embodiment, such as this embodiment, determining the first target available region of the first RAM space at step S102 includes substeps S111-S114.
And S111, opening a first area and a second area in the first RAM space.
In this embodiment, a first region and a second region are opened in the first RAM space to facilitate determination of a first target available region of the first RAM space.
And S112, detecting the first area in real time according to a preset RAM detection program.
In the present embodiment, the preset RAM detection program may be an existing program for detecting RAM space, such as parity check, ECC check, or the like. In this embodiment, when the first area is detected, the data stored in the first area is transferred to the second area, so as to ensure that a result obtained when the first area is detected by the RAM detection program is reliable.
S113, when the first area is detected to be the available area within the preset time, marking the first area as a first target available area, and detecting the second area in real time according to the RAM detection program.
In this embodiment, the preset time may be 1min, 2min, 3min, and the like, and when the first area is detected to be the available area within the preset time, the first area is marked as the first target available area. For example, the preset time is 1min, the RAM detection program loops 500 times to detect the first area within 1min, and when the first area is detected to be the available area 500 times, the first area is marked as a first target available area; when the first area is detected to be the unavailable area once, the RAM detection program stops working, and an alarm is sent out so that a worker can repair the first area conveniently. In this embodiment, when the second area is detected, the data stored in the second area is transferred to the first area, so as to ensure that the result obtained when the second area is detected by the RAM detection program is reliable.
S114, when the second area is detected to be the available area within the preset time, marking the second area as a first target available area and returning to the step of detecting the first area in real time according to a preset RAM detection program.
In this embodiment, the preset time may be 1min, 2min, 3min, and the like, and when the second area is detected to be the available area within the preset time, the second area is marked as the first target available area. For example, the preset time is 1min, the RAM detection program loops to detect the second area for 500 times within 1min, and when the second area is detected to be the available area for 500 times, the second area is marked as a first target available area, and when the second area is detected to be the unavailable area once, the RAM detection program stops working and sends an alarm instruction so that a worker can repair the second area. It should be understood that, at the same time, the first target usable area can be only the first area or the second area, and when the first area is marked as the first target usable area, the second area is marked as the detection area, and when the second area is marked as the first target usable area, the first area is marked as the detection area.
In this embodiment, the RAM detection program is placed in the background program of the functional security module 11 for executing in a circulating manner, the second area is detected after the first area is detected, and the first area is detected after the second area is detected, so as to ensure that the first RAM space has the detected first target available area for executing the functional security program at any time.
In this embodiment, when the step of determining the first target available area of the first RAM space is performed in S102, the RAM detection program stops executing to ensure that the functional safety program is executed successfully, so as to avoid a change of the first target available area during the execution of the functional safety program.
Referring to fig. 4, in an alternative embodiment, for example, in this embodiment, after step S106, executing a functional safety program according to the operation parameter and the functional safety parameter to detect the functional safety corresponding to the electrical device 101, and outputting the first detection result, steps S161 to S164 executed by the second control unit 15 are further included.
S161, determining a second target available area of the second RAM space.
In this embodiment, the second control unit 15 first determines the second target available area so that data can be stored in the available area of the second RAM space in the following, and before the functional safety module 11 determines the second target available area of the second RAM space, the second control unit 15 first receives an instruction to start the operation of the second control unit 15 from the second digital quantity input/output interface 16, so that the second control unit 15 operates normally.
And S162, receiving the operation parameters and the functional safety parameters sent by the first control unit 14, and storing the operation parameters and the functional safety parameters in a second target available area.
In the present exemplary embodiment, the operating parameters and the functional safety parameters are stored in the second target availability range, so that the second control unit 15 executes the functional safety program with reliable results.
And S163, executing the function safety program according to the operation parameters and the function safety parameters to detect the function safety corresponding to the electrical equipment 101, and outputting a second detection result.
In the present embodiment, the reliability of the functional safety detection is improved by the second control unit 15 executing the functional safety program to detect again the functional safety corresponding to the electrical device 101.
In the present embodiment, the first control unit 14 and the second control unit 15 receive signals of the same encoder through the encoder interface 21; the first SPI data interaction interface 18 and the third SPI data interaction interface 19 are used for performing key functions of the first control unit 14 and the second control unit 15 synchronously in addition to data interaction of the first control unit 14 and the second control unit 15, so as to ensure that the first detection result and the second detection result are obtained under the same condition.
And S164, receiving the first detection result and storing the first detection result in a second target available area.
In this embodiment, the first detection result is stored in the second target available area, so that the second control unit 15 obtains a reliable first comparison result when comparing the first detection result with the second detection result.
S165, comparing the first detection result with the second detection result to obtain a first comparison result.
In this embodiment, when the first comparison result is that the first detection result is different from the second detection result, the second control unit 15 generates an instruction of "re-detection" and sends the instruction to the first control unit 14, the first control unit 14 returns to the step S102 according to the instruction, and the second control unit 15 returns to the step S161 according to the instruction.
In this embodiment, when the first comparison result is "the first detection result is the same as the second detection result", the further processing is performed according to the first detection result and the second detection result, if both the first detection result and the second detection result are "the operation parameter is greater than the functional safety parameter, and the operation parameter of the electrical device 101 is abnormal", the second control unit 15 generates an instruction of "turning off the main circuit switch of the electrical device 101" and sends the instruction to the first control unit 14, and the first control unit 14 turns off the main circuit switch of the electrical device 101 according to the instruction; when the first detection result and the second detection result are both "the operation parameter is less than or equal to the functional safety parameter, and the operation parameter of electrical device 101 is normal", second control unit 15 generates a result of "electrical device 101 is functional safe and normal" and sends the result to first control unit 14, and electrical device 101 can normally operate according to the result. For example, the electrical device 101 is a frequency converter, the functional safety program is used for detecting functional safety of the output frequency of the frequency converter, and when the first detection result and the second detection result are both "real-time output frequency is greater than safe output frequency, and real-time output frequency of the frequency converter is abnormal", the first control unit 14 turns off a main circuit switch of the frequency converter; when the first detection result and the second detection result are both "the real-time output frequency is smaller than the safe output frequency, and the real-time output frequency of the frequency converter is normal", the second control unit 15 generates a "function of the frequency converter is safe and normal", and the frequency converter can normally work according to the result.
In this embodiment, the keyboard input interface 17 is used for connecting a keyboard, the display screen interface 20 is used for connecting a display screen, and the functional safety parameters are input into the first control unit 14 from the keyboard and displayed through the display screen, so that the functional safety parameters can be cross-checked, and the input functional safety parameters are not changed after being processed by the first control unit 14 and the second control unit 15, thereby improving the reliability of detection.
Referring to FIG. 5, in an alternative embodiment, such as this embodiment, determining the second target available region of the second RAM space at step S161 includes substeps S156-S159.
And S156, opening a third area and a fourth area in the second RAM space.
And S157, detecting the third area in real time according to a preset RAM detection program.
And S158, when the third area is detected to be the available area within the preset time, marking the third area as a second target available area, and detecting the fourth area in real time according to the RAM detection program.
And S159, when the fourth area is detected to be the available area within the preset time, marking the fourth area as a second target available area and returning to the step of detecting the third area in real time according to a preset RAM detection program.
In this embodiment, the method for determining the second target available area of the second RAM space may refer to the method for determining the first target available area of the first RAM space, and is not described herein again.
Referring to fig. 6, in an alternative embodiment, for example, in this embodiment, after the step of executing the functional safety program according to the operation parameter and the functional safety parameter to detect the functional safety corresponding to the electrical device 101 and output the second detection result, the following steps executed by the first control unit 14 are further included:
107. and receiving a second detection result and storing the second detection result in the first target available area.
In this embodiment, the second detection result is stored in the first target available area, so that the first control unit 14 obtains a reliable second comparison result when comparing the first detection result with the second detection result.
108. And comparing the first detection result with the second detection result to obtain a second comparison result.
In this embodiment, the first control unit 14 and the second control unit 15 cross-compare the first detection result and the second detection result, so that the detection result is more reliable.
In this embodiment, when the second comparison result is that the "first detection result is not the same as the second detection result", the first control unit 14 generates an instruction of "re-detection" and sends the instruction to the second control unit 15, the first control unit 14 returns to the step S102 according to the instruction, and the second control unit 15 returns to the step S161 according to the instruction.
In this embodiment, when the second comparison result is "the first detection result is the same as the second detection result", further processing is performed according to the first detection result and the second detection result, and if both the first detection result and the second detection result are "the operation parameter is greater than the functional safety parameter, and the operation parameter of the electrical device 101 is abnormal", the first control unit 14 generates an instruction "turn off the main circuit switch of the electrical device 101" so as to turn off the main circuit switch of the electrical device 101; when the first detection result and the second detection result are both "the operation parameter is less than or equal to the functional safety parameter, and the operation parameter of electrical device 101 is normal", first control unit 14 generates a result of "electrical device 101 is functional safe and normal", and electrical device 101 can normally operate according to the result. For example, the electrical device 101 is a frequency converter, the functional safety program is used for detecting functional safety of the output frequency of the frequency converter, and when the first detection result and the second detection result are both "real-time output frequency is greater than safe output frequency, and real-time output frequency of the frequency converter is abnormal", the first control unit 14 turns off a main circuit switch of the frequency converter; when the first detection result and the second detection result are both "the real-time output frequency is smaller than the safe output frequency, and the real-time output frequency of the frequency converter is normal", the first control unit 14 generates a "function of the frequency converter is safe and normal", and the frequency converter can normally work according to the result.
In this embodiment, the first control unit 14 and the second control unit 15 may execute the functional safety program at the same time, or may be executed by the first control unit 14 and then executed by the second control unit 15, or may be executed by the second control unit 15 and then executed by the first control unit 14.
In this embodiment, the first control unit 14 and the second control unit 15 cross-compare the first detection result and the second detection result, so as to further improve the reliability of the functional safety detection result.
In an optional embodiment, for example, in this embodiment, after the second control unit 15 obtains the second comparison result, the second comparison result is sent to the first control unit 14 through the third SPI data interaction interface 19, the first control unit 14 stores the first comparison result and the second comparison result in the first target available area, and identifies whether the first comparison result and the second comparison result are the same, when the first comparison result and the second comparison result are the same, the first control unit 14 and the second control unit 15 execute the corresponding steps according to the different situations, when the first comparison result is different from the second comparison result, the first control unit 14 generates a "re-detection" instruction and sends the instruction to the second control unit 15, the first control unit 14 returns to the step S102 according to the instruction, and the second control unit 15 returns to the step S161 according to the instruction.
Referring to fig. 7, fig. 7 is a schematic block diagram of a functional safety detection apparatus 300, the functional safety detection apparatus 300 is applied to a functional safety module 11 in a functional safety detection system 102, the functional safety detection apparatus 300 includes a first detection apparatus 390 configured in a first control unit 14, as shown in fig. 6, the first detection apparatus 390 includes a first receiving unit 301, a first obtaining unit 302, a second obtaining unit 303, a second receiving unit 304, a storage unit 305, and a first execution unit 306.
A first receiving unit 301, configured to receive a control instruction for starting the functional security module 11.
In this embodiment, the first receiving unit 301 controls the first control unit 14 to receive a control command from the first digital input/output interface 13 first, so as to activate the functional safety module 11, and enable the first control unit 14 to start operating.
A first obtaining unit 302 for determining a first target available area of a first RAM space.
In this embodiment, the first obtaining unit 302 controls the first control unit 14 to determine the first target available area of the first RAM space first, so that data can be stored in the first target available area later.
A second obtaining unit 303, configured to establish a communication connection with electrical device 101, and obtain an operation parameter of electrical device 101 required for executing a preset functional safety program.
In the present embodiment, a functional safety program is stored in functional safety module 11 for detecting functional safety of electrical device 101. First control unit 14 establishes communication connection with electrical device 101 through second SPI data interaction interface 12, and obtains operating parameters of electrical device 101. There may be a plurality of functional safety programs for detecting different functional safety of electrical device 101. The operation parameters are one or more real-time operation parameters of electrical device 101, and when a certain function safety program is executed, the operation parameters corresponding to electrical device 101 are obtained, for example, electrical device 101 is a frequency converter, the function safety program is used for detecting the function safety of the output frequency of the frequency converter, and the corresponding operation parameters are the real-time output frequency of the frequency converter. In this embodiment, the functional safety module 11 can not only perform data interaction with the electrical device 101 through the second SPI data interaction interface 12, but also control on/off of a main circuit switch of the electrical device 101 through the second SPI data interaction interface 12.
A second receiving unit 304, configured to receive functional security parameters required for executing a functional security program.
In this embodiment, the functional safety parameters correspond to the operating parameters. For example, the electrical device 101 is a frequency converter, the functional safety program is used for detecting functional safety of the output frequency of the frequency converter, the real-time output frequency of the frequency converter is 200Hz, and the functional safety parameter is a safety output frequency of 300 Hz. In this embodiment, the functional safety parameters of the electrical device 101 are input into the first control unit 14 by the operator through the keyboard input interface 17, and it is understood that in other embodiments, the functional safety parameters may be automatically input by the terminal device. In other embodiments, the functional safety parameters may also include a combination of one or more of time, current, voltage, etc.
The storage unit 305 is used for storing the operation parameters and the functional safety parameters in the first target available area.
In the present embodiment, the storage unit 305 controls the first control unit 14 to store the operation parameter and the functional safety parameter in the first target available area so as to obtain a reliable first detection result when the functional safety program is executed.
And a first execution unit 306, configured to execute a functional safety program according to the operating parameter and the functional safety parameter, so as to detect functional safety corresponding to electrical device 101, and output a first detection result.
In this embodiment, the functional safety program obtains a first detection result by comparing the operation parameter with the functional safety parameter, and when the first detection result is that "the operation parameter is greater than the functional safety parameter and the operation parameter of the electrical device 101 is abnormal", the first execution unit 306 generates an instruction to turn off the main circuit switch of the electrical device 101 so as to turn off the main circuit switch of the electrical device 101 through the second SPI data interaction interface 12.
In this embodiment, when the first detection result is that "the operation parameter is less than or equal to the functional safety parameter, and the operation parameter of electrical device 101 is normal", first execution unit 306 generates a result that "electrical device 101 is functional safe and normal", and electrical device 101 can normally operate according to the result. For example, the electrical device 101 is a frequency converter, the functional safety program is used for detecting functional safety of the output frequency of the frequency converter, the real-time output frequency of the frequency converter is 200Hz, the safety output frequency of the frequency converter is 300Hz, when the first control unit 14 executes the functional safety program, the real-time output frequency is compared with the safety output frequency of 200Hz and 300Hz, a first detection result that the real-time output frequency is smaller than the safety output frequency and the real-time output frequency of the frequency converter is normal is obtained, and then the first execution unit 306 generates a result that the function of the frequency converter is safe and normal. In the present embodiment, the functional safety procedure is repeatedly executed after a preset time interval, which may be 1h, 2h, 3h, etc.
In an optional embodiment, for example, in this embodiment, the first obtaining unit 302 includes a first partitioning module 311, a first detecting module 312, a first marking module 313, and a second marking module 314.
The first partitioning module 311 is configured to open a first area and a second area in the first RAM space.
In this embodiment, the first partition unit 311 opens the first area and the second area in the first RAM space to facilitate determining the first target available area of the first RAM space.
The first detecting module 312 is configured to detect the first area in real time according to a preset RAM detection program.
In the present embodiment, the preset RAM detection program may be an existing program for detecting RAM space, such as parity check, ECC check, or the like. In this embodiment, when the first area is detected, the data stored in the first area is transferred to the second area, so as to ensure that a result obtained when the first area is detected by the RAM detection program is reliable.
The first marking module 313 is configured to mark the first area as a first target usable area when the first area is detected to be a usable area within a preset time, and detect the second area in real time according to a RAM detection program.
In this embodiment, the preset time may be 1min, 2min, 3min, and the like, and when the first area is detected to be the available area within the preset time, the first area is marked as the first target available area. For example, the preset time is 1min, the RAM detection program loops 500 times to detect the first area within 1min, and when the first area is detected to be the available area 500 times, the first area is marked as the target available area; when the first area is detected to be the unavailable area once, the RAM detection program stops working, and an alarm is sent out so that a worker can repair the first area conveniently. In this embodiment, when the second area is detected, the data stored in the second area is transferred to the first area, so as to ensure that the result obtained when the second area is detected by the RAM detection program is reliable.
The second marking module 314 is configured to mark the second area as a first target usable area when the second area is detected to be a usable area within a preset time, and return to the step of detecting the first area in real time according to a preset RAM detection program.
In this embodiment, the preset time may be 1min, 2min, 3min, and the like, and when the second area is detected to be the available area within the preset time, the second area is marked as the first target available area. For example, the preset time is 1min, the RAM detection program loops to detect the second area for 500 times within 1min, and when the second area is detected to be the available area for 500 times, the second area is marked as a first target available area, and when the second area is detected to be the unavailable area once, the RAM detection program stops working and sends an alarm instruction so that a worker can repair the second area. It should be understood that, at the same time, the first target usable area can be only the first area or the second area, and when the first area is marked as the first target usable area, the second area is marked as the detection area, and when the second area is marked as the first target usable area, the first area is marked as the detection area.
In this embodiment, the RAM detection program is placed in the background program of the functional security module 11 for executing in a circulating manner, the second area is detected after the first area is detected, and the first area is detected after the second area is detected, so as to ensure that the first RAM space has the detected first target available area for executing the functional security program at any time.
In this embodiment, when the step of determining the first target available area of the first RAM space is performed in S102, the RAM detection program stops executing to ensure that the functional safety program is executed successfully, so as to avoid a change of the first target available area during the execution of the functional safety program.
Referring to fig. 8, in an alternative embodiment. For example, in this embodiment, the functional safety detection apparatus 300 further includes a second detection apparatus 391 configured in the second control unit 15, where the second detection apparatus 391 includes a third obtaining unit 316, a third receiving unit 317, a second executing unit 318, a fourth receiving unit 319, and a first comparing unit 320.
A third obtaining unit 316 for determining a second target available area of the second RAM space.
In this embodiment, the third obtaining unit 316 controls the second control unit 15 to determine the second target available area first, so that data can be stored in the available area of the second RAM space in the following, and before the functional security module 11 determines the second target available area of the second RAM space, the second control unit 15 receives an instruction for starting the operation of the second control unit 15 from the second digital quantity input/output interface 16, so that the second control unit 15 operates normally.
And a third receiving unit 317, configured to receive the operation parameter and the functional safety parameter sent by the first control unit 14, and store the operation parameter and the functional safety parameter in the second target available area.
In the present exemplary embodiment, the operating parameters and the functional safety parameters are stored in the second target availability range, so that the second control unit 15 executes the functional safety program with reliable results.
And a second execution unit 318, configured to execute the functional safety program according to the operation parameter and the functional safety parameter, so as to detect functional safety corresponding to electrical device 101, and output a second detection result.
In this embodiment, the second execution unit 318 executes the functional safety program through the second control unit 15 to detect the functional safety corresponding to the electrical device 101 again, thereby improving the reliability of the functional safety detection.
In the present embodiment, the first control unit 14 and the second control unit 15 receive signals of the same encoder through the encoder interface 21; besides being used for data interaction, the first SPI data interaction interface 18 and the third SPI data interaction interface 19 are also used for synchronously executing key functions of the first control unit 14 and the second control unit 15 to ensure that the first detection result and the second detection result are obtained under the same condition.
A fourth receiving unit 319, configured to receive the first detection result and store the first detection result in the second target available area.
In this embodiment, the first detection result is stored in the second target available area, so that the second control unit 15 obtains a reliable first comparison result when comparing the first detection result with the second detection result.
The first comparing unit 320 is configured to compare the first detection result with the second detection result to obtain a comparison result.
In this embodiment, when the first comparison result is that the "first detection result is not the same as the" second detection result ", the first comparison unit 319 generates an instruction of" re-detection "and sends the instruction to the first control unit 14, the first control unit 14 sends the instruction to the first obtaining unit 302, and the second control unit 15 sends the instruction to the third obtaining unit 316.
In this embodiment, when the first comparison result is "the first detection result is the same as the second detection result", the first comparison unit 319 further processes according to the first detection result and the second detection result, and if both the first detection result and the second detection result are "the operation parameter is greater than the functional safety parameter, and the operation parameter of the electrical device 101 is abnormal", the first comparison unit 319 generates an instruction of "turning off the main circuit switch of the electrical device 101" and sends the instruction to the first control unit 14, and the first control unit 14 turns off the main circuit switch of the electrical device 101 according to the instruction. When the first detection result and the second detection result are both "the operation parameter is less than or equal to the functional safety parameter, and the operation parameter of electrical device 101 is normal", first comparing unit 319 generates a result of "electrical device 101 is functional safe and normal" and sends the result to first control unit 14, and electrical device 101 can normally operate according to the result. For example, the electrical device 101 is a frequency converter, the functional safety program is used for detecting functional safety of the output frequency of the frequency converter, and when the first detection result and the second detection result are both "real-time output frequency is greater than safe output frequency, and real-time output frequency of the frequency converter is abnormal", the first control unit 14 turns off a main circuit switch of the frequency converter; when the first detection result and the second detection result are both "the real-time output frequency is smaller than the safe output frequency, and the real-time output frequency of the frequency converter is normal", the first comparing unit 319 generates a result that the function of the frequency converter is safe and normal ", and the frequency converter can normally operate according to the result.
In this embodiment, the keyboard input interface 17 is used for connecting a keyboard, the display screen interface 20 is used for connecting a display screen, and the functional safety parameters are input into the first control unit 14 from the keyboard and displayed through the display screen, so that the functional safety parameters can be cross-checked, and the input functional safety parameters are not changed after being processed by the first control unit 14 and the second control unit 15, thereby improving the reliability of detection.
In an embodiment, the third obtaining unit 316 includes a second partitioning module 320, a second detecting module 321, a third marking module 322, and a fourth marking module 323.
And a second partitioning module 320, configured to open a third area and a fourth area in the second RAM space.
And a second detecting module 321, configured to detect the third area in real time according to a preset RAM detection program.
The third marking module 322 is configured to mark the third area as a second target usable area when the third area is detected to be a usable area within a preset time, and detect the fourth area in real time according to the RAM detection program.
The fourth marking module 323 is configured to mark the fourth area as a second target usable area and return to the step of detecting the third area in real time according to a preset RAM detection program when the fourth area is detected as a usable area within a preset time.
In this embodiment, the method for determining the second target available area of the second RAM space may refer to the method for determining the first target available area of the first RAM space, and is not described herein again.
Referring to fig. 9, in an alternative embodiment. For example, in this embodiment, the first detecting device 390 further includes a fifth receiving unit 307 and a second comparing unit 308.
A fifth receiving unit 307, configured to receive the second detection result and store the second detection result in the first target available area.
In this embodiment, the second detection result is stored in the first target available area, so that the first control unit 14 obtains a reliable second comparison result when comparing the first detection result with the second detection result.
The second comparing unit 308 is configured to compare the first detection result and the second detection result to obtain a second comparison result.
In this embodiment, the first control unit 14 and the second control unit 15 cross-compare the first detection result and the second detection result, so that the detection result is more reliable.
In this embodiment, when the second comparison result is that the "first detection result is different from the second detection result", the second comparison unit 308 generates an instruction of "re-detection" and sends the instruction to the second control unit 15, the first control unit 14 sends the instruction to the first obtaining unit 302, and the second control unit 15 sends the instruction to the third obtaining unit 316.
In this embodiment, when the second comparison result is "the first detection result is the same as the second detection result", the second comparison unit 308 performs further processing according to the first detection result and the second detection result, and if both the first detection result and the second detection result are "the operation parameter is greater than the functional safety parameter, and the operation parameter of the electrical device 101 is abnormal", the second comparison unit 308 generates an instruction "turn off the main circuit switch of the electrical device 101", so as to turn off the main circuit switch of the electrical device 101; when the first detection result and the second detection result are both "the operation parameter is less than or equal to the functional safety parameter, and the operation parameter of the electrical device 101 is normal", the second comparison unit 308 generates a result "the electrical device 101 is functional safe and normal", and the electrical device 101 can normally operate according to the result. For example, the electrical device 101 is a frequency converter, the functional safety program is used for detecting functional safety of the output frequency of the frequency converter, and when the first detection result and the second detection result are both "real-time output frequency is greater than safe output frequency, and real-time output frequency of the frequency converter is abnormal", the first control unit 14 turns off a main circuit switch of the frequency converter; when the first detection result and the second detection result are both "the real-time output frequency is smaller than the safe output frequency, and the real-time output frequency of the frequency converter is normal", the second comparison unit 308 generates a "frequency converter function is safe and normal", and the frequency converter can normally work according to the result.
In an optional embodiment, for example, in this embodiment, after the second control unit 15 obtains the second comparison result, the second comparison result is sent to the first control unit 14 through the third SPI data interaction interface 19, the first control unit 14 stores the first comparison result and the second comparison result in the first target available area, and identifies whether the first comparison result and the second comparison result are the same, when the first comparison result and the second comparison result are the same, the first control unit 14 and the second control unit 15 execute the corresponding steps according to the different situations, when the first comparison result is different from the second comparison result, the first control unit 14 generates a "re-detection" instruction and sends the instruction to the second control unit 15, the first control unit 14 returns to the step S102 according to the instruction, and the second control unit 15 returns to the step S161 according to the instruction.
The embodiment of the present application further provides a functional security module 11, where the functional security module 11 includes any one of the functional security detection apparatuses 300 described above.
The embodiment of the present application further provides a functional safety detection system 102, where the functional safety detection system 102 includes an electrical device 101 and any one of the functional safety modules 11 described above.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A functional safety detection method, characterized in that the method is applied to a functional safety module in a functional safety detection system, the functional safety detection system further comprising an electrical device communicable with the functional safety module, wherein the functional safety module comprises a first control unit and a first RAM space, the functional safety detection method comprising the following steps performed by the first control unit:
receiving a control instruction for starting the functional safety module;
determining a first target available area of the first RAM space;
establishing communication connection with the electrical equipment, and acquiring operation parameters of the electrical equipment required by executing a preset functional safety program;
receiving functional security parameters required for executing the functional security program;
storing the operating parameters and the functional safety parameters in the first target available area;
and executing the functional safety program according to the operating parameters and the functional safety parameters so as to detect the functional safety corresponding to the electrical equipment and output a first detection result.
2. The functional security detection method of claim 1, wherein the step of determining the first target available area of the first RAM space comprises:
a first area and a second area are arranged in the first RAM space;
detecting the first area in real time according to a preset RAM detection program;
when the first area is detected to be the available area within the preset time, marking the first area as the first target available area, and detecting the second area in real time according to the RAM detection program;
and when the second area is detected to be the available area within the preset time, marking the second area as the first target available area and returning to the step of detecting the first area in real time according to a preset RAM detection program.
3. The functional security detection method of claim 1, wherein the functional security module further comprises a second control unit and a second RAM space, and wherein the step of receiving functional security parameters required to execute the functional security program further comprises the following steps performed by the second control unit:
determining a second target available area of the second RAM space;
receiving the operation parameters and the functional safety parameters sent by the first control unit, and storing the operation parameters and the functional safety parameters in the second target available area;
executing the functional safety program according to the operating parameters and the functional safety parameters to detect the functional safety corresponding to the electrical equipment and output a second detection result;
receiving the first detection result and storing the first detection result in the second target available area;
and comparing the first detection result with the second detection result to obtain a first comparison result.
4. The functional security detection method of claim 3, wherein the step of determining the second target available area of the second RAM space comprises:
a third area and a fourth area are arranged in the second RAM space;
detecting the third area in real time according to a preset RAM detection program;
when the third area is detected to be the available area within the preset time, marking the third area as the second target available area, and detecting the fourth area in real time according to the RAM detection program;
and when the fourth area is detected to be an available area within a preset time, marking the fourth area as the second target available area and returning to the step of detecting the third area in real time according to a preset RAM detection program.
5. The functional safety detection method according to claim 3, wherein after the step of executing the functional safety program according to the operating parameter and the functional safety parameter to detect the functional safety corresponding to the electrical device and output a second detection result, the method further comprises the following steps executed by the first control unit:
receiving the second detection result and storing the second detection result in the first target available area;
and comparing the first detection result with the second detection result to obtain a second comparison result.
6. A functional safety detection device, characterized in that the functional safety detection device is applied to a functional safety module in a functional safety detection system, the functional safety detection system further comprising an electrical apparatus communicable with the functional safety module, wherein the functional safety module comprises a first control unit and a first RAM space, the functional safety detection device comprises a first detection device arranged in the first control unit, the first detection device comprises:
the first receiving unit is used for receiving a control instruction for starting the functional safety module;
a first obtaining unit, configured to determine a first target available area of the first RAM space;
the second acquisition unit is used for establishing communication connection with the electrical equipment and acquiring the operating parameters of the electrical equipment required by executing the preset functional safety program;
a second receiving unit, configured to receive a functional security parameter required for executing the functional security program;
the storage unit is used for storing the operating parameters and the functional safety parameters in the first target available area;
the first execution unit is used for executing the functional safety program according to the operation parameters and the functional safety parameters so as to detect the functional safety corresponding to the electrical equipment and output a first detection result; wherein,
the first acquisition unit includes:
the first partition module is used for opening a first area and a second area in the first RAM space;
the first detection module is used for detecting the first area in real time according to a preset RAM detection program;
the first marking module is used for marking the first area as the first target available area when the first area is detected to be the available area within preset time, and detecting the second area in real time according to the RAM detection program;
and the second marking module is used for marking the second area as the first target available area and returning to the step of detecting the first area in real time according to a preset RAM detection program when the second area is detected to be the available area within preset time.
7. The functional safety detection device according to claim 6, wherein the functional safety module further comprises a second control unit and a second RAM space, the functional safety detection device further comprising a second detection device disposed in the second control unit, wherein the second detection device comprises:
a third obtaining unit, configured to determine a second target available area of the second RAM space;
a third receiving unit, configured to receive the operation parameter and the functional safety parameter sent by the first control unit, and store the operation parameter and the functional safety parameter in the second target available area;
the second execution unit is used for executing the functional safety program according to the operation parameters and the functional safety parameters so as to detect the functional safety corresponding to the electrical equipment and output a second detection result;
a fourth receiving unit, configured to receive the first detection result and store the first detection result in the second target available area;
the first comparison unit is used for comparing the first detection result with the second detection result to obtain a first comparison result; wherein,
the third acquisition unit includes:
the second partition module is used for opening a third area and a fourth area in the second RAM space;
the second detection module is used for detecting the third area in real time according to a preset RAM detection program;
the third marking module is used for marking the third area as the second target available area when the third area is detected to be the available area within the preset time, and detecting the fourth area in real time according to the RAM detection program;
and the fourth marking module is used for marking the fourth area as the second target available area and returning to the step of detecting the third area in real time according to a preset RAM detection program when the fourth area is detected to be the available area within preset time.
8. The functional safety detection device according to claim 7, wherein the first detection device further comprises:
a fifth receiving unit, configured to receive the second detection result and store the second detection result in the first target available area;
and the second comparison unit is used for comparing the first detection result with the second detection result to obtain a second comparison result.
9. A functional security module, characterized in that it comprises a functional security detection device according to any of claims 6 to 8.
10. A functional safety detection system, characterized in that it comprises an electrical device and a functional safety module according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910403188.7A CN110045210A (en) | 2019-05-15 | 2019-05-15 | Functional safety detection method, device, functional safety module and detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910403188.7A CN110045210A (en) | 2019-05-15 | 2019-05-15 | Functional safety detection method, device, functional safety module and detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110045210A true CN110045210A (en) | 2019-07-23 |
Family
ID=67281934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910403188.7A Pending CN110045210A (en) | 2019-05-15 | 2019-05-15 | Functional safety detection method, device, functional safety module and detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110045210A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021127805A1 (en) * | 2019-12-23 | 2021-07-01 | 深圳市英威腾电气股份有限公司 | Functional safety device for frequency converter |
| CN113605053A (en) * | 2021-07-30 | 2021-11-05 | 海信（山东）冰箱有限公司 | Washing machine processing method, main control board and washing machine |
| WO2024138543A1 (en) * | 2022-12-29 | 2024-07-04 | 芯原微电子(上海)股份有限公司 | Functional safety display controller and functional safety display control system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105513645A (en) * | 2014-09-24 | 2016-04-20 | 中兴通讯股份有限公司 | Failure detection method and failure detection apparatus for random access memory (RAM) |
| CN108189672A (en) * | 2018-01-12 | 2018-06-22 | 成都雅骏新能源汽车科技股份有限公司 | A kind of integrated manipulator of electric automobile based on functional safety |
| CN108899059A (en) * | 2018-07-25 | 2018-11-27 | 郑州云海信息技术有限公司 | A kind of detection method and equipment of solid state hard disk |
| CN109038809A (en) * | 2018-06-22 | 2018-12-18 | 国家电网有限公司 | Substation intelligent monitoring controlling terminal |
| US20190050515A1 (en) * | 2018-06-27 | 2019-02-14 | Intel Corporation | Analog functional safety with anomaly detection |
| CN109557453A (en) * | 2018-11-28 | 2019-04-02 | 郑州云海信息技术有限公司 | A kind of more main control chip identifying processing method and system |
| CN109661586A (en) * | 2016-09-02 | 2019-04-19 | 大众汽车有限公司 | Method for determining the functional safety of a battery |
-
2019
- 2019-05-15 CN CN201910403188.7A patent/CN110045210A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105513645A (en) * | 2014-09-24 | 2016-04-20 | 中兴通讯股份有限公司 | Failure detection method and failure detection apparatus for random access memory (RAM) |
| CN109661586A (en) * | 2016-09-02 | 2019-04-19 | 大众汽车有限公司 | Method for determining the functional safety of a battery |
| CN108189672A (en) * | 2018-01-12 | 2018-06-22 | 成都雅骏新能源汽车科技股份有限公司 | A kind of integrated manipulator of electric automobile based on functional safety |
| CN109038809A (en) * | 2018-06-22 | 2018-12-18 | 国家电网有限公司 | Substation intelligent monitoring controlling terminal |
| US20190050515A1 (en) * | 2018-06-27 | 2019-02-14 | Intel Corporation | Analog functional safety with anomaly detection |
| CN108899059A (en) * | 2018-07-25 | 2018-11-27 | 郑州云海信息技术有限公司 | A kind of detection method and equipment of solid state hard disk |
| CN109557453A (en) * | 2018-11-28 | 2019-04-02 | 郑州云海信息技术有限公司 | A kind of more main control chip identifying processing method and system |
Non-Patent Citations (1)
| Title |
|---|
| 李颖: "《面向HEV动力总成控制器功能安全测试的HIL系统》", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021127805A1 (en) * | 2019-12-23 | 2021-07-01 | 深圳市英威腾电气股份有限公司 | Functional safety device for frequency converter |
| CN114467062A (en) * | 2019-12-23 | 2022-05-10 | 深圳市英威腾电气股份有限公司 | Functional safety device of frequency converter |
| CN114467062B (en) * | 2019-12-23 | 2024-09-10 | 深圳市英威腾电气股份有限公司 | Functional safety device of frequency converter |
| CN113605053A (en) * | 2021-07-30 | 2021-11-05 | 海信（山东）冰箱有限公司 | Washing machine processing method, main control board and washing machine |
| WO2024138543A1 (en) * | 2022-12-29 | 2024-07-04 | 芯原微电子(上海)股份有限公司 | Functional safety display controller and functional safety display control system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110045210A (en) | Functional safety detection method, device, functional safety module and detection system | |
| CN112114897B (en) | Parameter configuration method and device based on industrial control screen and computer equipment | |
| CN110908702A (en) | Version switching method, version switching device, computer equipment and storage medium | |
| CN109358827B (en) | Method, system, equipment and storage medium for controlling application serial port printing | |
| CN111896884A (en) | Charging detection method and device | |
| CN215867583U (en) | Controller fault diagnosis test system | |
| CN111221554B (en) | DSP circuit structure, DSP online program upgrading method and device | |
| CN111159048A (en) | Application program testing method and device and computer readable storage medium | |
| CN117826759A (en) | Diagnostic test method and device for vehicle controller, vehicle and electronic equipment | |
| CN114014117B (en) | Elevator maintenance method, mobile terminal and elevator | |
| CN106932004B (en) | A kind of detection method and device of sensor | |
| CN106528402B (en) | Method and system for testing terminal | |
| CN111081224B (en) | Data acquisition method and device for petroleum safety event | |
| CN104598807B (en) | Increment upgrade detection method, management method, terminal and increment updating and management platform | |
| CN116296334A (en) | Testing method, device and equipment for false touch of key | |
| CN110764840B (en) | Method, device and system for wirelessly debugging android device | |
| CN111581042B (en) | Cluster deployment method, deployment platform and server to be deployed | |
| CN108241309B (en) | Management control method and system | |
| CN112711495A (en) | Display screen fault diagnosis method and device and computer readable storage medium | |
| CN107220149B (en) | Method and system for capturing debugging data of wireless communication module in Linux system under Windows | |
| CN112711511A (en) | Method and system for monitoring terminal equipment based on script server | |
| CN115658498A (en) | Application program debugging method, system, terminal and storage medium | |
| CN111782241A (en) | Remote upgrading method and system based on vehicle-mounted terminal | |
| CN115550219B (en) | Network fault detection method, system, electronic equipment and storage medium | |
| CN115730201A (en) | Fault arc monitoring method and device, computer equipment and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190723 |