CN215641650U - Automatic complete equipment fault detection device - Google Patents
Automatic complete equipment fault detection device Download PDFInfo
- Publication number
- CN215641650U CN215641650U CN202121256057.XU CN202121256057U CN215641650U CN 215641650 U CN215641650 U CN 215641650U CN 202121256057 U CN202121256057 U CN 202121256057U CN 215641650 U CN215641650 U CN 215641650U
- Authority
- CN
- China
- Prior art keywords
- module
- detection
- control module
- switching
- detected equipment
- 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.)
- Active
Links
Images
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The application discloses automatic complete equipment fault detection device includes: testing the tool main body and the detection module; the test fixture main body comprises: a control module and an operation module; the operation module is electrically connected with the control module and used for acquiring an operation instruction input by a user and sending the operation instruction to the control module; the control module is electrically connected with the detection module and used for sending detection information to the detection module according to the operation instruction; the detection module is used for sending a detection operation instruction to the detected equipment according to the detection information, and the detection operation instruction is used for enabling the detected equipment to carry out state detection operation; the detection module is also used for acquiring the state information of the detected equipment. Through setting up detection module for detection module with be connected the back by the check out test set, fortune dimension personnel can detect each item function of check out test set through operation module operation control module, and whole wiring is more simple than current universal meter.
Description
Technical Field
The application relates to the technical field of circuit testing devices, in particular to a fault detection device for automatic complete equipment.
Background
The electric automation complete equipment is usually required to maintain the equipment in the operation process, particularly for the equipment with longer service life. After the equipment fails, how to quickly troubleshoot the equipment is a concern for operation and maintenance personnel.
The existing troubleshooting mode is to measure through a universal meter and the like, but the universal meter is limited in function, only on-off of a loop can be preliminarily judged, and the core function of equipment cannot be tested, so that the troubleshooting efficiency is low.
SUMMERY OF THE UTILITY MODEL
In view of this, an object of the present application is to provide an automatic complete equipment fault detection apparatus for improving the efficiency of troubleshooting equipment.
In order to achieve the above technical object, the present application provides an automatic complete equipment fault detection device, including: testing the tool main body and the detection module;
the test tool main body comprises: a control module and an operation module;
the operation module is electrically connected with the control module and is used for acquiring an operation instruction input by a user and sending the operation instruction to the control module;
the control module is electrically connected with the detection module and used for sending detection information to the detection module according to the operation instruction;
the detection module is used for sending a detection operation instruction to the detected equipment according to the detection information, and the detection operation instruction is used for enabling the detected equipment to carry out state detection operation;
the detection module is also used for acquiring the state information of the detected equipment.
Further, the detection module includes: the system comprises an opening and closing control circuit, an opening and closing signal acquisition circuit, a voltage acquisition circuit, a current acquisition circuit, an energy storage test circuit and an energy storage signal acquisition circuit;
the opening and closing signal acquisition circuit is used for acquiring the opening and closing state of the detected equipment;
the switching-on and switching-off control circuit is used for sending a switching-on and switching-off operation instruction and a switching-off operation instruction to the detected equipment according to the switching-on and switching-off state of the detected equipment;
the voltage acquisition loop is used for acquiring the voltage value of the detected equipment;
the current acquisition loop is used for acquiring the current value of the detected equipment;
the energy storage signal acquisition loop is used for acquiring an energy storage state signal of the detected equipment;
and the energy storage test loop is used for sending an energy storage detection operation instruction to the detected equipment according to the energy storage state signal of the detected equipment.
Further, the test fixture main body further comprises: a display module;
the display module is electrically connected with the control module and is used for displaying the operating instruction and the state information of the detected equipment;
the state information comprises the energy storage state, the opening and closing state, the voltage value and the current value of the detected equipment.
Further, the display module comprises a display screen and an indicator light which are electrically connected with the control module;
the display screen is used for displaying the operation instruction;
the indicator light is used for displaying the state information of the detected equipment.
Further, the indicator lamp includes: energy storage pilot lamp, branch position pilot lamp, closed position pilot lamp, voltage pilot lamp, current pilot lamp and operation pilot lamp.
Furthermore, the operation module is a key operation module and comprises a brake separating key and a brake closing key which are electrically connected with the control module;
the brake separating key is used for inputting brake separating operation information to the control module;
and the closing key is used for inputting closing operation information to the control module.
Further, the test tool main body further comprises a front end cover and a rear end cover;
the front end cover and the rear end cover are mutually spliced, and an installation cavity is formed between the front end cover and the rear end cover;
the control module is arranged in the mounting cavity;
the operation module is arranged on the front end cover.
Further, the control module is provided with a plurality of contacts for connecting with the detection module;
the rear end cover is provided with a plurality of interfaces;
the plurality of interfaces correspond to the plurality of contacts one by one and are used for connecting wires with the contacts.
According to the above technical solution, the present application provides an automatic complete equipment fault detection device, including: testing the tool main body and the detection module; the test tool main body comprises: a control module and an operation module; the operation module is electrically connected with the control module and is used for acquiring an operation instruction input by a user and sending the operation instruction to the control module; the control module is electrically connected with the detection module and used for sending detection information to the detection module according to the operation instruction; the detection module is used for sending a detection operation instruction to the detected equipment according to the detection information, and the detection operation instruction is used for enabling the detected equipment to carry out state detection operation; the detection module is also used for acquiring the state information of the detected equipment.
By arranging the detection module, after the detection module is connected with the detected equipment, operation and maintenance personnel can directly operate the control module to detect all functions of the detected equipment through the operation module based on the detection module. And through the mode that detection module is direct to be connected with by the check out test set, need simpler than current universal meter, and can carry out short-term test to the item of examining frequently by the check out test set, compare in the detection function that the universal meter is limited, the efficiency that can effectual improvement equipment trouble shooting.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a block diagram illustrating a fault detection apparatus for an automated complete equipment according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram illustrating a connection of a control module of an automatic complete equipment fault detection device according to an embodiment of the present disclosure;
fig. 3 is a menu structure diagram of a display module of an automatic complete equipment fault detection device according to an embodiment of the present application;
fig. 4 is a front end cover diagram of an automatic complete equipment fault detection device according to an embodiment of the present application;
fig. 5 is a rear end cap view of an automatic complete equipment fault detection device according to an embodiment of the present application;
in the figure: 1. a control module; 2. a detection module; 21. a switching-on and switching-off control loop; 22. a switching-on and switching-off signal acquisition loop; 23. a voltage acquisition loop; 24. a current collection loop; 25. an energy storage test loop; 26. an energy storage signal acquisition loop; 3. a display module; 31. a display screen; 32. an indicator light; 4. an operation module; 5. testing the tool main body; 51. a front end cover; 52. a rear end cap; 53. an interface.
Detailed Description
The technical solutions of the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are some, but not all embodiments of the present application. 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 scope of protection claimed herein.
In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
The embodiment of the application discloses automatic complete equipment fault detection device.
Referring to fig. 1, an automatic complete equipment fault detection device provided in the embodiment of the present application includes: testing the tool main body 5 and the detection module 2; test fixture main part 5 is including: a control module 1 and an operation module 4; the operation module 4 is electrically connected with the control module 1 and is used for acquiring an operation instruction input by a user and sending the operation instruction to the control module 1; the control module 1 is electrically connected with the detection module 2 and is used for sending detection information to the detection module 2 according to the operation instruction; the detection module 2 is used for sending a detection operation instruction to the detected equipment according to the detection information, and the detection operation instruction is used for enabling the detected equipment to carry out state detection operation, so that whether each function of the detected equipment is normal or not is detected; the detection module 2 is further configured to acquire status information of the device under test. The detection module 2 can be connected with a feeder terminal device (abbreviated as FTU) and connected with a detected device through an FTU connection terminal.
It should be noted that the detection module includes: the system comprises an opening and closing control circuit 21, an opening and closing signal acquisition circuit 22, a voltage acquisition circuit 23, a current acquisition circuit 24, an energy storage test circuit 25 and an energy storage signal acquisition circuit 26;
the opening and closing signal acquisition circuit 22 is used for acquiring an opening and closing state of the detected equipment so as to determine that the detected equipment is in the opening state or the closing state, and meanwhile, whether the circuit connected with the detected equipment by the detection module 2 is normal or not can be judged according to whether the opening and closing signal acquisition circuit 22 can acquire the opening and closing signal so as to determine whether the opening and closing switching value can be normally output or not;
the switching-on/off control circuit 21 is configured to send a switching-off operation instruction and a switching-on operation instruction to the detected device according to the switching-on/off state of the detected device, so that the detected device performs switching-on/off operation and switching-on operation, and further detects the switching-on/off function of the detected device;
the voltage acquisition loop 23 is used for acquiring a voltage value of the detected equipment;
the current acquisition loop 24 is used for acquiring the current value of the detected equipment;
the energy storage signal acquisition circuit 26 is used for acquiring an energy storage state signal of the detected equipment, so as to determine that the detected equipment is in an energy non-storage state or an energy storage state, and meanwhile, whether the connected circuit is normal can be judged according to whether the energy storage state signal can be acquired by the energy storage signal acquisition circuit 26;
the energy storage test circuit 25 is configured to send an energy storage detection operation instruction to the device to be detected according to the energy storage state signal of the device to be detected, so as to detect whether the energy storage function of the device to be detected is normal.
Through setting up a plurality of return circuits that can detect the different projects of equipment under test for the detection device that provides through this scheme can be swift carry out troubleshooting to the normal item of detecting equipment under test, thereby effectual improvement troubleshooting efficiency.
The above is the first embodiment provided in the present application, and the following is the second embodiment provided in the present application, please refer to fig. 1 to 5 specifically.
An automated kit fault detection device, comprising: testing the tool main body 5 and the detection module 2; test fixture main part 5 is including: a control module 1 and an operation module 4; the operation module 4 is electrically connected with the control module 1 and is used for acquiring an operation instruction input by a user and sending the operation instruction to the control module 1; the control module 1 is electrically connected with the detection module 2 and is used for sending detection information to the detection module 2 according to the operation instruction; the detection module 2 is used for sending a detection operation instruction to the detected equipment according to the detection information, and the detection operation instruction is used for enabling the detected equipment to carry out state detection operation, so that whether each function of the detected equipment is normal or not is detected; the detection module 2 is further configured to acquire status information of the device under test.
The detection module includes: the system comprises an opening and closing control circuit 21, an opening and closing signal acquisition circuit 22, a voltage acquisition circuit 23, a current acquisition circuit 24, an energy storage test circuit 25 and an energy storage signal acquisition circuit 26; the opening and closing signal acquisition circuit 22 is used for acquiring the opening and closing state of the detected equipment; the switching-on/off control circuit 21 is used for sending a switching-off operation instruction and a switching-on operation instruction to the detected equipment according to the switching-on/off state of the detected equipment; the voltage acquisition loop 23 is used for acquiring a voltage value of the detected equipment; the current acquisition loop 24 is used for acquiring the current value of the detected equipment; the energy storage signal acquisition circuit 26 is used for acquiring an energy storage state signal of the detected equipment; the energy storage test loop 25 is used for sending an energy storage detection operation instruction to the detected device according to the energy storage state signal of the detected device.
Specifically, the control module 1 may include a single chip microcomputer and an SPWM inverter circuit. The single chip microcomputer can use the STM32F103 as an equipment CPU and a core component for equipment data processing, communication test function and operation function; when the single chip microcomputer is used for collecting voltage or current, the detected equipment can output alternating current and voltage by running the SPWM function and matching the hardware circuit; when the singlechip performs switching-on and switching-off tests and energy storage tests, the switching-on and switching-off tests and the energy storage tests can be realized by matching the operation module with high and low potentials, for example, switching-on is high potential 1, switching-off is low potential 0, non-stored energy is high potential 1, and stored energy is low potential 0. Meanwhile, when the detection device is connected to a field switch, the on-off and non-energy storage conditions of the external switch body can be collected. The single chip microcomputer can communicate with the communication unit of the detected equipment through the detection module 2 through an IEC101 protocol. The SPWM inverter circuit can be a bipolar SPWM inverter circuit based on STM32F103, is used as a hardware circuit component of equipment and mainly used for outputting alternating current and voltage after being processed by a singlechip SPWM code program. The TIM1 of the STM32F103 monolithic processor is an advanced timer that can produce up to 7 PWM outputs simultaneously.
It should be noted that, in this embodiment, the FTU is used as the secondary connection loop, and the fault of the detected device can be checked by detecting the functions of the FTU, such as switching-on/off operation, energy storage operation, network port communication, serial port communication, voltage measurement, and current measurement.
Referring to fig. 2, the single chip microcomputer may be provided with a plurality of contacts for connecting with the detection module 2, for example, when the opening and closing functions of the detected device are detected, the opening and closing contacts and the closing control circuit 21 may be connected, and the opening and closing control circuit 21 is connected to the corresponding connection port of the detected device, so that the single chip microcomputer may output an opening signal and a closing signal to the detected device, and at this time, the opening contact and the closing contact are connected to the opening and closing signal collection circuit 22 and used as collection ends of the opening and closing state signals of the detected device. Similarly, when detecting the energy storage function of the detected device, the connection mode may be that the energy storage contact is connected with the energy storage test circuit 25, and the energy storage acquisition contact is connected with the energy storage signal acquisition circuit 26. Taking a closing contact as an example, the closing contact includes a closing positive contact and a closing negative contact, so that a loop of the control module 1 outputting a closing signal to the detected device is a closed loop.
Further, a display module 3 is included. The display module 3 is installed on the test tool main body 5, electrically connected with the control module 1, and used for displaying the operating instruction and the state of the detected equipment. The state information comprises the energy storage state, the opening and closing state, the voltage value and the current value of the detected equipment.
Referring to fig. 3, the display module 3 may be configured to display a main menu including command issuing, parameter setting, and analog output testing, where the command issuing may include functional commands for starting, shutting down, or restarting the device to be tested; the parameter setting may include setting of basic parameters such as brightness, serial communication parameter setting, network port communication parameter setting, and the like, and the operation module 4 may determine the operation to be performed conveniently through the display module 3.
Further, referring to fig. 4, the display module 3 includes a display screen 31 and an indicator light 32 both electrically connected to the control module 1; the display screen 31 is used for displaying an operation instruction, for example, may be a liquid crystal display, and may be configured to automatically turn on and turn off a backlight, and if an operation instruction is not issued to the control module 1 within a set time, the backlight is turned off, and the display screen 31 is turned off. The indicator lamp 32 is used to display the state of the device under test.
The indicator lamp 32 may include: the energy storage indicator lamp is used for displaying whether the detected equipment stores energy or not, separating the indicator lamp and closing the indicator lamp, indicating whether the detection module 2 is normal or not with the detected equipment connection loop, namely whether the detection module can be closed or not so as to normally output the opening and closing switching value and the voltage indicator lamp, indicating whether the voltage value and the current indicator lamp can be normally collected or not, indicating whether the current value and the operation indicator lamp can be normally collected or not and indicating whether the equipment is in an operation state or not.
Further, the device also comprises a power supply module; the power supply module is electrically connected with the control module 1 and the test module 2 and used for supplying power.
Specifically, in the present embodiment, the rated voltage for supplying power to the control module 1 is DC 5V; the power module can be a storage battery arranged in the test tool main body 5, and can also be an external alternating current power supply which supplies power to the control module 1 after rectification.
Further, referring to fig. 4 and 5, the test fixture main body 5 includes a front end cover 51 and a rear end cover 52; the front end cover 51 is arranged on the rear end cover 52, and a mounting cavity is formed between the front end cover 51 and the rear end cover 52; the control module 1 is arranged in the mounting cavity; the operation module 4 is arranged on the front end cover 51; the display module 3 is also disposed on the front cover 51.
Further, the control module 1 is provided with a plurality of contacts for connection with the detection module 2; the rear cover 52 is provided with a plurality of interfaces 53 corresponding to the contacts.
The interface 53 is arranged on the rear end cover 52, so that the effect of convenient wiring can be achieved; the interfaces 101 to 122 correspond to contacts on the control module 1 for docking with the detection module 2, and the interfaces 201 to 208 are used for being connected with a power supply module or being docked with serial ports such as RS485, RS232 and RJ 45.
Further, the operation module 4 may be a key operation module including: the direction selection key, the confirm key, the cancel key, the brake separating key and the switch-on key. The direction selection keys can be up, down, left and right moving keys for adjusting options in the display module 3; the confirm key is used for indicating confirmation and entering a menu; a cancel key for indicating cancellation of modification and returning to the upper menu; the opening key and the closing key are used for manually operating and outputting opening and closing signals.
The application provides an automatic complete equipment fault detection device is after normal power-on, can show current detection device's telesignalling state through display screen 31 and pilot lamp 32 to can get into different menus through operation module 4 and set up detection device's parameter, get into the simulation test function after the parameter setting finishes, carry out the troubleshooting test to being detected equipment. Wherein, the contacts on the control module 1 provide pairs of stem nodes; the detection device is opened as a dry contact and is opened as a non-original contact. Through this device, can be swift carry out troubleshooting to being detected equipment, possess functions such as divide-shut brake function detection, energy storage function detection, voltage acquisition, current acquisition, can effectual improvement troubleshooting efficiency.
Although the present invention has been described in detail with reference to examples, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention.
Claims (8)
1. An automated kit failure detection device, comprising: testing the tool main body and the detection module;
the test tool main body comprises: a control module and an operation module;
the operation module is electrically connected with the control module and is used for acquiring an operation instruction input by a user and sending the operation instruction to the control module;
the control module is electrically connected with the detection module and used for sending detection information to the detection module according to the operation instruction;
the detection module is used for sending a detection operation instruction to the detected equipment according to the detection information, and the detection operation instruction is used for enabling the detected equipment to carry out state detection operation;
the detection module is also used for acquiring the state information of the detected equipment.
2. The automatic complete equipment fault detection device according to claim 1, wherein the detection module comprises a switching-on and switching-off control circuit, a switching-on and switching-off signal acquisition circuit, a voltage acquisition circuit, a current acquisition circuit, an energy storage test circuit and an energy storage signal acquisition circuit which are all electrically connected with the control module;
the opening and closing signal acquisition circuit is used for acquiring the opening and closing state of the detected equipment;
the switching-on and switching-off control circuit is used for sending a switching-on and switching-off operation instruction and a switching-off operation instruction to the detected equipment according to the switching-on and switching-off state of the detected equipment;
the voltage acquisition loop is used for acquiring the voltage value of the detected equipment;
the current acquisition loop is used for acquiring the current value of the detected equipment;
the energy storage signal acquisition loop is used for acquiring an energy storage state signal of the detected equipment;
and the energy storage test loop is used for sending an energy storage detection operation instruction to the detected equipment according to the energy storage state signal of the detected equipment.
3. The automated complete equipment fault detection device of claim 2, wherein the test fixture body further comprises: a display module;
the display module is electrically connected with the control module and is used for displaying the operating instruction and the state information of the detected equipment;
the state information comprises the energy storage state, the opening and closing state, the voltage value and the current value of the detected equipment.
4. The automated kit fault detection device of claim 3, wherein the display module includes a display screen and an indicator light both electrically connected to the control module;
the display screen is used for displaying the operation instruction;
the indicator light is used for displaying the state information of the detected equipment.
5. The automated kit fault detection device of claim 4, wherein the indicator light comprises: energy storage pilot lamp, branch position pilot lamp, closed position pilot lamp, voltage pilot lamp, current pilot lamp and operation pilot lamp.
6. The automatic complete equipment fault detection device of claim 3, wherein the operation module is a key operation module comprising an opening key and a closing key which are electrically connected with the control module;
the brake separating key is used for inputting brake separating operation information to the control module;
and the closing key is used for inputting closing operation information to the control module.
7. The automated kit fault detection device of claim 1, wherein the test fixture body further comprises a front end cap and a rear end cap;
the front end cover and the rear end cover are mutually spliced, and an installation cavity is formed between the front end cover and the rear end cover;
the control module is arranged in the mounting cavity;
the operation module is arranged on the front end cover.
8. The automated kit fault detection device of claim 7, wherein the control module is provided with a plurality of contacts for connection with the detection module;
the rear end cover is provided with a plurality of interfaces;
the plurality of interfaces correspond to the plurality of contacts one by one and are used for connecting wires with the contacts.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202121256057.XU CN215641650U (en) | 2021-06-04 | 2021-06-04 | Automatic complete equipment fault detection device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202121256057.XU CN215641650U (en) | 2021-06-04 | 2021-06-04 | Automatic complete equipment fault detection device |
Publications (1)
Publication Number | Publication Date |
---|---|
CN215641650U true CN215641650U (en) | 2022-01-25 |
Family
ID=79941673
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202121256057.XU Active CN215641650U (en) | 2021-06-04 | 2021-06-04 | Automatic complete equipment fault detection device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN215641650U (en) |
-
2021
- 2021-06-04 CN CN202121256057.XU patent/CN215641650U/en active Active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN216013591U (en) | Multifunctional handcart switch control loop tester | |
CN211148838U (en) | Air conditioner internal unit testing device | |
CN105182107A (en) | Detection device, system and method | |
CN208654780U (en) | A kind of opening/closing control device and detection system | |
CN215641650U (en) | Automatic complete equipment fault detection device | |
CN211402623U (en) | Portable testing device for indoor unit and outdoor unit of air conditioner | |
CN204807649U (en) | Tester | |
CN214409153U (en) | Operating state monitor for oil fume purifier | |
CN217587514U (en) | Intelligent micro-breaking automatic testing device | |
CN212112228U (en) | Portable battery management system host system detection device | |
CN210427717U (en) | Small-size integral type circuit board automatic test box | |
CN210720559U (en) | Intelligent station bus secondary voltage monitoring device | |
CN111374591A (en) | Control system and method of dust collector | |
CN209167398U (en) | Relay protection multifunctional unit debugging tool | |
CN207819552U (en) | A kind of high pressure measurement negative control terminal dual-power automatic switching transformation conversion equipment | |
CN112531909A (en) | Multifunctional integrated control device | |
CN112904195A (en) | FTU and pole switch on-site detection device | |
CN221746188U (en) | Portable load control operation and maintenance detection device | |
CN219678734U (en) | Lamp box with emergency function | |
CN217404423U (en) | Intelligent device tester | |
CN113376552B (en) | Switching value testing device and method | |
CN212323737U (en) | Intelligent wire holder | |
CN217386205U (en) | Fault detection device and system | |
CN219611426U (en) | Electromagnetic intelligent feeder terminal | |
CN212304787U (en) | Multifunctional integrated charging device for electric power detection instrument |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |