CN113739682A - Mounting position detection device of board card and server - Google Patents
Mounting position detection device of board card and server Download PDFInfo
- Publication number
- CN113739682A CN113739682A CN202110964360.3A CN202110964360A CN113739682A CN 113739682 A CN113739682 A CN 113739682A CN 202110964360 A CN202110964360 A CN 202110964360A CN 113739682 A CN113739682 A CN 113739682A
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- magnet
- magnetic field
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- 238000001514 detection method Methods 0.000 title claims abstract description 17
- 230000035945 sensitivity Effects 0.000 claims description 15
- 230000004044 response Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 abstract description 6
- 210000003811 finger Anatomy 0.000 description 8
- 230000007246 mechanism Effects 0.000 description 5
- 229910001172 neodymium magnet Inorganic materials 0.000 description 5
- 239000004065 semiconductor Substances 0.000 description 4
- 230000005355 Hall effect Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- WPYVAWXEWQSOGY-UHFFFAOYSA-N indium antimonide Chemical compound [Sb]#[In] WPYVAWXEWQSOGY-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910052701 rubidium Inorganic materials 0.000 description 1
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/003—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring position, not involving coordinate determination
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mounting Of Printed Circuit Boards And The Like (AREA)
Abstract
The invention discloses a device for detecting the installation position of a board card, which comprises: the magnets are respectively arranged at different positions of the board card to be detected; the sensors are arranged on the back plate connected with the board card to be detected; wherein each sensor is disposed below one of the plurality of magnets; each sensor is configured to detect magnetic field strength and convert the detected magnetic field strength into an electric current; and the controller is configured to receive the current generated by each sensor and determine whether the board card to be detected is installed in place according to the current. The invention also provides a server. According to the invention, the magnetic field intensity is used as a condition for judging whether the board card to be detected is installed in place, the board card does not need to occupy the pins of the connector for in-place detection, and the number of the pins used by the connector can be saved.
Description
Technical Field
The invention relates to the field of servers, in particular to a device for detecting the installation position of a board card and a server.
Background
When the server system is assembled, if the system determines whether each board card in the system is installed in place, plugging and unplugging monitoring is generally performed through a PRSNT pin, and a pin for detecting an in-place state is generally reserved on a connector pin of the board card or a pin of a golden finger and is used for judging whether the board card is inserted or unplugged. This pin is pulled low when the board card is inserted. Of course, since the length of PCIe (Peripheral Component Interconnect express) golden finger is long, there is a possibility that the difference between the front and rear heights is generated when the card is inserted. Therefore, a plurality of pins for detecting the in-place state are required to detect whether the golden finger is completely inserted, that is, whether the board card is installed in place.
The hot plug of the PCIe bus mainly refers to the hot plug of the PCIe board device, and the related implementation mechanism. The PCIe card has two sideband signals-PRSNT 1# and PRSNT2# for hot-plug mechanism. These two signals on the PCIe card device are shorted, PRSNT1# of the PCIe slot is fixedly connected to ground, and PRSNT2# is pulled up. And the length of the gold finger of the two signals is shorter than that of the gold finger of the other signal. When the PCIe card device is not fully inserted into the slot, the PRSNT2# signal of the slot will always be in a high-pointed state due to the pull-up. When the PCIe card device is fully inserted into the slot, the PRSNT2# signal on the slot is connected to ground by the short-circuited line of the PCIe card device, so that it goes low. In other words, from the perspective of the slot, when the PRSNT2# bit is high, the PCIe card device is considered to have failed to be properly inserted or not, and when the PRSNT2# bit is low, the PCIe card device is properly inserted into the slot.
In the prior art, whether the board card is installed in place is detected, and besides using the Present Pin, the detection may also be performed through load detection of a link, and the like. I.e. so-called in-band detection in-bit state, or some special scenarios such as NT-NT back-to-back, there is no Present signal. When NT-NT is inserted, the Link is automatically reconnected.
However, in the process of assembling the system board card, there is still a fixed skew amount, the system installation looks normal, but the board card and the connector are not installed in place, so that if the server is produced and assembled, the board card is not installed in place and generates skew, which causes the corresponding signal to be not normally contacted, the function of the position of the system cannot be normally operated, and the production personnel often need to repeatedly disassemble and assemble due to positioning the problem.
Disclosure of Invention
In view of the above, in order to overcome at least one aspect of the above problems, an embodiment of the present invention provides an apparatus for detecting a mounting position of a board, including:
the magnets are respectively arranged at different positions of the board card to be detected;
the sensors are arranged on the back plate connected with the board card to be detected;
wherein each sensor is disposed below one of the plurality of magnets; each sensor is configured to detect magnetic field strength and convert the detected magnetic field strength into an electric current;
and the controller is configured to receive the current generated by each sensor and determine whether the board card to be detected is installed in place according to the current.
In some embodiments, the plurality of magnets include a first magnet and a second magnet, and the first magnet and the second magnet are respectively disposed at two ends of the board card to be detected.
In some embodiments, a distance between the first magnet and the corresponding first sensor is greater than a distance between the second magnet and the corresponding second sensor.
In some embodiments, the sensitivity of the first sensor is greater than the sensitivity of the second sensor.
In some embodiments, the controller is further configured to generate a first control signal to prevent the system from being powered on and generate an alarm signal to control the alarm device to alarm in response to detecting that the board card to be detected is not mounted in place.
Based on the same inventive concept, an embodiment of the present invention further provides a server, including a device for detecting a mounting position of a board, where the device for detecting a mounting position of a board includes:
the magnets are respectively arranged at different positions of the board card to be detected;
the sensors are arranged on the back plate connected with the board card to be detected;
wherein each sensor is disposed below one of the plurality of magnets; each sensor is configured to detect magnetic field strength and convert the detected magnetic field strength into an electric current;
and the controller is configured to receive the current generated by each sensor and determine whether the board card to be detected is installed in place according to the current.
In some embodiments, the plurality of magnets include a first magnet and a second magnet, and the first magnet and the second magnet are respectively disposed at two ends of the board card to be detected.
In some embodiments, a distance between the first magnet and the corresponding first sensor is greater than a distance between the second magnet and the corresponding second sensor.
In some embodiments, the sensitivity of the first sensor is greater than the sensitivity of the second sensor.
In some embodiments, the controller is further configured to generate a first control signal to prevent the system from being powered on and generate an alarm signal to control the alarm device to alarm in response to detecting that the board card to be detected is not mounted in place.
The invention has one of the following beneficial technical effects: according to the scheme provided by the embodiment of the invention, the magnet is arranged on the board card to replace an in-place signal of a traditional connector, the sensor is arranged on the main board or the control board to detect the magnetic field intensity, and after the board card is arranged in place, the sensor can generate a corresponding electric signal to be provided for a BMC (Baseboard Management Controller) to judge, so that a judging mechanism for starting/closing a normal power supply when the system is in standby is provided. And the condition that whether the installation is in place is judged by detecting the magnetic field, the board card does not need to occupy the pins of the connector for in-place detection, and the number of the pins used by the connector can be saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other embodiments can be obtained by using the drawings without creative efforts.
Fig. 1 is a schematic view of a mounting position detection device for a board card according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following embodiments of the present invention are described in further detail with reference to the accompanying drawings.
It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it should be noted that "first" and "second" are merely for convenience of description and should not be construed as limitations of the embodiments of the present invention, and they are not described in any more detail in the following embodiments.
In the embodiment of the present invention, the hall effect means that a fixed current is firstly passed through a P-type semiconductor, and when a magnetic field is applied above the semiconductor, due to the influence of the magnetic field B and the acting force of Lorentz force (Lorentz force), according to the right-hand rule: three fingers of the right hand are perpendicular to each other, the direction of the thumb is the conductor movement direction, the index finger is the magnetic field direction, and the middle finger is the current direction. Positive charges move to the top of the P-type semiconductor and negative charges move to the bottom. The potential difference measured by the meter is the Hall Voltage (Hall Voltage).
According to an aspect of the present invention, an embodiment of the present invention provides a mounting position detecting apparatus of a board, which may include a plurality of magnets, a plurality of sensors, and a controller, as shown in fig. 1.
The plurality of magnets can be respectively arranged at different positions of the board card to be detected, and each sensor is arranged on a back plate connected with the board card to be detected; and each sensor is disposed below one of the plurality of magnets; each sensor is configured to detect magnetic field strength and convert the detected magnetic field strength into an electric current; and the controller is configured to receive the current generated by each sensor and determine whether the board card to be detected is installed in place according to the current.
In some embodiments, the sensor may be a hall sensor. A hall sensor is a sensor that senses a change in a magnetic field based on the hall effect. The hall sensor material is generally composed of P-type semiconductor, such as gallium arsenide (GaAs) and indium antimonide (InSb).
The potential difference (voltage) obtained after the Hall Sensor induces the magnetic field is an analog signal, and in order to facilitate the input to the GPIO pin of the MCU for subsequent control, the signal is firstly led to pass through an amplifier in the Hall Sensor (Hall Sensor IC), and then the Schmitt trigger is utilized to convert the signal into a digital signal and output the digital signal to the controller.
The hall sensors can be divided into four types according to sensing modes: unipolar single output (unipolarandoneuutput): only one of the S pole or the N pole of the magnetic field can be induced, and the signal is a single output. Bipolar single output (bipolarandoneouutput): both the S pole and the N pole of the magnetic field can be induced, and the signal is output singly. Bipolar dual output (Bipolarandtwooutput): the S pole or the N pole of the magnetic field can be induced, the signal is double-output, and two output pins respectively reflect the state of the S pole or the N pole. State change detection (biploarch): the signal can be induced to be a single output when the magnetic field transitions from the S pole to the N pole or from the N pole to the S pole.
In some embodiments, the magnet may be a Neodymium magnet (neodynium magnet), also known as a Neodymium iron boron magnet (NdFeB magnet), often corrupted as a "rubidium magnet," a tetragonal crystal formed of Neodymium, iron, and boron (Nd2Fe 14B). Neodymium magnets are the most strongly magnetic permanent magnets of today and are also the most commonly used rare earth magnets. Neodymium iron boron magnets are widely used in electronic products such as hard disks, mobile phones, earphones, and battery powered tools.
In some embodiments, the number of the plurality of magnets is two, and the first magnet and the second magnet are respectively disposed at two ends of the board card to be detected.
Specifically, two magnets can be arranged at two ends of the board card to be detected, two Hall sensors can be correspondingly arranged and added on the main board, the distance relationship between the magnets and the Hall sensors is utilized, so that the Hall sensors generate different electric signals, the farther the relative distance is, the weaker the magnetic field strength which can be detected by the Hall sensors is, the shorter the relative distance is, and the stronger the magnetic field strength which can be detected by the Hall sensors is. Therefore, for the Hall sensor, the magnetic field intensity which can be detected by the Hall sensor can be used as the basis for judging whether the board card to be detected is installed in place or not.
In some embodiments, a distance between the first magnet and the corresponding first sensor is greater than a distance between the second magnet and the corresponding second sensor.
In some embodiments, the sensitivity of the first sensor is greater than the sensitivity of the second sensor.
Specifically, as shown in fig. 1, the mounting positions of the two magnets on the board card to be detected can be set to be high or low, so that whether the board card is mounted in place can be more accurately judged. And the sensitivity of the sensor corresponding to the magnet with the relatively low position may be less than the sensitivity of the sensor corresponding to the magnet with the relatively high position. Because the magnet with the relatively low position is closer to the sensor, the magnetic field intensity of the magnet is larger, and therefore the sensitivity of the corresponding sensor can be reduced, and the detection error can be reduced.
In some embodiments, the relative position between the plurality of magnets and the sensor can be adjusted according to different system design configuration requirements, and the placement mode and position of each board card can be flexibly regulated according to the requirements of each system, so as to be compatible with the requirements and applications of each system.
In some embodiments, the controller is further configured to generate a first control signal to prevent the system from being powered on and generate an alarm signal to control the alarm device to alarm in response to detecting that the board card to be detected is not mounted in place.
Specifically, the controller (such as a BMC) can receive the electric signal generated by the sensor, judge whether the board card is installed in place or not through the electric signal, and alarm and prompt an abnormal position if the board card is not installed in place, and prevent the system from being started.
According to the scheme provided by the embodiment of the invention, the magnet is arranged on the board card to replace an in-place signal of a traditional connector, the sensor is arranged on the main board or the control board to detect the magnetic field intensity, and after the board card is arranged in place, the sensor can generate a corresponding electric signal to be provided for BMC to judge so as to be used as a judging mechanism for starting/closing a normal power supply when the system is in standby. And the condition that whether the installation is in place is judged by detecting the magnetic field, the board card does not need to occupy the pins of the connector for in-place detection, and the number of the pins used by the connector can be saved.
Based on the same inventive concept, an embodiment of the present invention further provides a server, including:
the mounted position detection device including the integrated circuit board, wherein, the mounted position detection device of integrated circuit board includes:
the magnets are respectively arranged at different positions of the board card to be detected;
the sensors are arranged on the back plate connected with the board card to be detected;
wherein each sensor is disposed below one of the plurality of magnets; each sensor is configured to detect magnetic field strength and convert the detected magnetic field strength into an electric current;
and the controller is configured to receive the current generated by each sensor and determine whether the board card to be detected is installed in place according to the current.
In some embodiments, the number of the plurality of magnets is two, and the first magnet and the second magnet are respectively disposed at two ends of the board card to be detected.
In some embodiments, a distance between the first magnet and the corresponding first sensor is greater than a distance between the second magnet and the corresponding second sensor.
In some embodiments, the sensitivity of the first sensor is greater than the sensitivity of the second sensor.
In some embodiments, the controller is further configured to generate a first control signal to prevent the system from being powered on and generate an alarm signal to control the alarm device to alarm in response to detecting that the board card to be detected is not mounted in place.
According to the scheme provided by the embodiment of the invention, the magnet is arranged on the board card to replace an in-place signal of a traditional connector, the sensor is arranged on the main board or the control board to detect the magnetic field intensity, and after the board card is arranged in place, the sensor can generate a corresponding electric signal to be provided for BMC to judge so as to be used as a judging mechanism for starting/closing a normal power supply when the system is in standby. And the condition that whether the installation is in place is judged by detecting the magnetic field, the board card does not need to occupy the pins of the connector for in-place detection, and the number of the pins used by the connector can be saved.
The foregoing is an exemplary embodiment of the present disclosure, but it should be noted that various changes and modifications could be made herein without departing from the scope of the present disclosure as defined by the appended claims. Furthermore, although elements of the disclosed embodiments of the invention may be described or claimed in the singular, the plural is contemplated unless limitation to the singular is explicitly stated.
It should be understood that, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly supports the exception. It should also be understood that "and/or" as used herein is meant to include any and all possible combinations of one or more of the associated listed items.
The numbers of the embodiments disclosed in the embodiments of the present invention are merely for description, and do not represent the merits of the embodiments.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, of embodiments of the invention is limited to these examples; within the idea of an embodiment of the invention, also technical features in the above embodiment or in different embodiments may be combined and there are many other variations of the different aspects of the embodiments of the invention as described above, which are not provided in detail for the sake of brevity. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of the embodiments of the present invention are intended to be included within the scope of the embodiments of the present invention.
Claims (10)
1. The utility model provides a mounted position detection device of integrated circuit board which characterized in that includes:
the magnets are respectively arranged at different positions of the board card to be detected;
the sensors are arranged on the back plate connected with the board card to be detected;
wherein each sensor is disposed below one of the plurality of magnets; each sensor is configured to detect magnetic field strength and convert the detected magnetic field strength into an electric current;
and the controller is configured to receive the current generated by each sensor and determine whether the board card to be detected is installed in place according to the current.
2. The apparatus of claim 1, wherein the plurality of magnets comprises a first magnet and a second magnet, and the first magnet and the second magnet are respectively disposed at two ends of the board to be detected.
3. The apparatus of claim 2, wherein a distance between the first magnet and the corresponding first sensor is greater than a distance between the second magnet and the corresponding second sensor.
4. The apparatus of claim 3, wherein the sensitivity of the first sensor is greater than the sensitivity of the second sensor.
5. The apparatus of claim 1, wherein the controller is further configured to generate a first control signal to prevent the system from being powered on and generate an alarm signal to control the alarm device to alarm in response to detecting that the board to be detected is not installed in place.
6. The utility model provides a server, its characterized in that includes the mounted position detection device of integrated circuit board, wherein, the mounted position detection device of integrated circuit board includes:
the magnets are respectively arranged at different positions of the board card to be detected;
the sensors are arranged on the back plate connected with the board card to be detected;
wherein each sensor is disposed below one of the plurality of magnets; each sensor is configured to detect magnetic field strength and convert the detected magnetic field strength into an electric current;
and the controller is configured to receive the current generated by each sensor and determine whether the board card to be detected is installed in place according to the current.
7. The server according to claim 6, wherein the plurality of magnets include a first magnet and a second magnet, and the first magnet and the second magnet are respectively disposed at two ends of the board to be detected.
8. The server of claim 7, wherein a distance between the first magnet and the corresponding first sensor is greater than a distance between the second magnet and the corresponding second sensor.
9. The server of claim 8, wherein the sensitivity of the first sensor is greater than the sensitivity of the second sensor.
10. The server according to claim 6, wherein the controller is further configured to generate a first control signal to prevent the system from being powered on and generate an alarm signal to control the alarm device to alarm in response to detecting that the board card to be detected is not installed in place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110964360.3A CN113739682A (en) | 2021-08-22 | 2021-08-22 | Mounting position detection device of board card and server |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110964360.3A CN113739682A (en) | 2021-08-22 | 2021-08-22 | Mounting position detection device of board card and server |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113739682A true CN113739682A (en) | 2021-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110964360.3A Pending CN113739682A (en) | 2021-08-22 | 2021-08-22 | Mounting position detection device of board card and server |
Country Status (1)
| Country | Link |
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| CN (1) | CN113739682A (en) |
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|---|---|---|---|---|
| US20060113991A1 (en) * | 2004-12-01 | 2006-06-01 | Simmonds Precision Products, Inc. | Printed circuit card-based proximity sensor and associated method of detecting a proximity of an object |
| CN101963935A (en) * | 2010-09-27 | 2011-02-02 | 深圳市理邦精密仪器股份有限公司 | Device for detecting in-operation state of function module, medical equipment and detection method |
| CN103490247A (en) * | 2013-09-22 | 2014-01-01 | 黄为 | Patch board installation mechanism for computer host |
| CN105356127A (en) * | 2015-10-21 | 2016-02-24 | 上海斐讯数据通信技术有限公司 | Data line interface, portable equipment and method for connecting data line interface with portable equipment |
| CN107696900A (en) * | 2017-10-31 | 2018-02-16 | 朱森 | One kind is used for new-energy automobile charging wire alignment system |
| CN207558009U (en) * | 2017-12-12 | 2018-06-29 | 东莞智得电子制品有限公司 | A kind of jig is in place and number detection device |
| CN108255655A (en) * | 2018-01-11 | 2018-07-06 | 郑州云海信息技术有限公司 | A kind of PCIe is stuck in position detection board |
-
2021
- 2021-08-22 CN CN202110964360.3A patent/CN113739682A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060113991A1 (en) * | 2004-12-01 | 2006-06-01 | Simmonds Precision Products, Inc. | Printed circuit card-based proximity sensor and associated method of detecting a proximity of an object |
| CN101963935A (en) * | 2010-09-27 | 2011-02-02 | 深圳市理邦精密仪器股份有限公司 | Device for detecting in-operation state of function module, medical equipment and detection method |
| CN103490247A (en) * | 2013-09-22 | 2014-01-01 | 黄为 | Patch board installation mechanism for computer host |
| CN105356127A (en) * | 2015-10-21 | 2016-02-24 | 上海斐讯数据通信技术有限公司 | Data line interface, portable equipment and method for connecting data line interface with portable equipment |
| CN107696900A (en) * | 2017-10-31 | 2018-02-16 | 朱森 | One kind is used for new-energy automobile charging wire alignment system |
| CN207558009U (en) * | 2017-12-12 | 2018-06-29 | 东莞智得电子制品有限公司 | A kind of jig is in place and number detection device |
| CN108255655A (en) * | 2018-01-11 | 2018-07-06 | 郑州云海信息技术有限公司 | A kind of PCIe is stuck in position detection board |
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