CN215263847U - Detection system - Google Patents
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- CN215263847U CN215263847U CN202120695099.7U CN202120695099U CN215263847U CN 215263847 U CN215263847 U CN 215263847U CN 202120695099 U CN202120695099 U CN 202120695099U CN 215263847 U CN215263847 U CN 215263847U
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Abstract
The utility model discloses a detection system, including processing module and data acquisition module, wherein data acquisition module gathers the impedance to ground and output voltage of feeder ear, then judges the impedance to ground or output voltage who gathers by processing module to judge whether in normal within range. It is thus clear that this application can realize carrying out the function that detects to the power supply end of the functional module of mainboard, and detect power supply end impedance to ground or output voltage through the data acquisition module in this application, then judge the testing result through processing module, and the processing speed is far greater than the speed that artifical detection and judgement, has improved the efficiency that detects greatly.
Description
Technical Field
The utility model relates to a detection area especially relates to a detecting system.
Background
In the PCBA (Printed Circuit Board Assembly, PCBA) link, a situation of cold joint, empty joint, missing joint or wrong attachment of an electronic component may occur, and for the above situation, in the prior art, a universal meter is usually used to detect the earth impedance of the power supply terminal of each module (such as a wireless module, a bluetooth module or a voice module) on the motherboard, and determine whether the earth impedance is within an allowable range; after the impedance to ground is measured, the output voltage of the power supply end of each module is detected, and whether the output voltage is in a normal range is judged, so that whether the welding of the electronic elements on the mainboard is correct is judged. Above-mentioned detection process is by manual operation universal meter, and manual operation's speed is slower, especially when the power supply end that needs to detect is more, and manual detection's efficiency is lower.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a detecting system, processing speed is far greater than the speed that artifical detection and judgement, has improved the efficiency that detects greatly.
In order to solve the above technical problem, the utility model provides a detection system, include:
the data acquisition module is connected with the power supply end of the functional module on the mainboard at the detection end and is used for detecting the impedance to ground of the power supply end when the mainboard is not electrified; after the mainboard is powered on, detecting the output voltage of the power supply end;
the input end of the processing module is connected with the data acquisition module, the output end of the processing module is connected with the power supply end of the mainboard, and the processing module is used for judging whether the impedance to ground is in a normal impedance range or not, and controlling the mainboard to be electrified if the impedance to ground is in the normal impedance range so that the data acquisition module detects the output voltage of the power supply end; and judging whether the output voltage is in a normal voltage range, and controlling the mainboard to be powered off if the output voltage is not in the normal voltage range.
Preferably, the number of the functional modules on the main board is multiple;
the data acquisition module is specifically used for detecting the impedance to ground of each power supply end when the mainboard is not powered on; after the mainboard is powered on, detecting the output voltage of each power supply end;
the processing module is specifically configured to determine whether each impedance to ground is within a normal impedance range, and if each impedance to ground is within the normal impedance range, control the main board to be powered on so that the data acquisition module detects output voltages of the power supply terminals; and judging whether the output voltages are within a normal voltage range, and controlling the mainboard to be powered off if the output voltages are not within the normal voltage range.
Preferably, the processing module comprises:
the upper computer is connected with the data acquisition module and used for judging whether each grounding impedance is in a normal impedance range, if so, sending a power-on instruction to the power control module to power on the mainboard, judging whether each output voltage is in a normal voltage range, and if not, sending a power-off instruction to the power control module to power off the mainboard;
the power supply control module is used for controlling the mainboard to be powered on when the power-on instruction is received, and controlling the mainboard to be powered off when the power-off instruction is received.
Preferably, the power control module includes:
the power supply module is connected with the power supply end of the mainboard at the output end and used for providing power supply to supply power for the mainboard;
the control module is connected with the control end of the power module at the input end and is used for controlling the power module to supply power to the mainboard when receiving the power-on instruction and controlling the power module not to supply power to the mainboard when receiving the power-off instruction.
Preferably, the control module is a single chip microcomputer.
Preferably, the method further comprises the following steps:
the alarm device is connected with the processing module and used for sending alarm information when receiving an alarm instruction;
the processing module is further used for sending an alarm instruction to the alarm device when each impedance to ground is not in a normal impedance range or each output voltage is not in a normal voltage range.
Preferably, the alarm device comprises one or more of an acoustic alarm device, an optical alarm device, a vibration alarm device and a picture alarm device.
Preferably, the data acquisition module comprises a data acquisition instrument and a data acquisition switch card;
the control end is connected with the processing module, the input end is connected with the data acquisition instrument, and the output end is connected with the power supply end of the functional module;
the data acquisition instrument with a control end connected with the processing module is used for adjusting a measurement gear of the data acquisition instrument based on the acquisition control instruction, acquiring the impedance to ground of the corresponding power supply end through a channel conducted in the data acquisition switch card when the mainboard is not powered on, or acquiring the output voltage of the corresponding power supply end through the channel conducted in the data acquisition switch card after the mainboard is powered on;
the processing module is further used for generating a corresponding acquisition control instruction according to a preset scheme of a user.
Preferably, the data acquisition instrument is a data acquisition instrument of model number Agilent 34970A.
Preferably, the data acquisition switch card is a data acquisition switch card with model number of Agilent 34901A.
The utility model provides a detection system, including processing module and data acquisition module, wherein data acquisition module gathers the impedance to ground and output voltage of power supply end, then judges the impedance to ground or output voltage who gathers by processing module to judge whether in normal scope. It is thus clear that this application can realize carrying out the function that detects to the power supply end of the functional module of mainboard, and detect power supply end impedance to ground or output voltage through the data acquisition module in this application, then judge the testing result through processing module, and the processing speed is far greater than the speed that artifical detection and judgement, has improved the efficiency that detects greatly.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the prior art and the embodiments are briefly introduced 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 to obtain other drawings without creative efforts.
Fig. 1 is a block diagram of a detection system provided by the present invention;
fig. 2 is a block diagram of another detection system provided by the present invention;
fig. 3 is the utility model provides an internal switch structure schematic diagram of a data acquisition switch card.
Detailed Description
The core of the utility model is to provide a detecting system, processing speed is far greater than the speed that artifical detection and judgement, has improved the efficiency that detects greatly.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a block diagram of a detection system according to the present invention, the system includes:
the data acquisition module 1 is connected with the power supply end of the functional module on the mainboard at the detection end and is used for detecting the impedance to the ground of the power supply end when the mainboard is not electrified; after the mainboard is powered on, detecting the output voltage of the power supply end;
the input end of the processing module 2 is connected with the data acquisition module 1, and the output end of the processing module is connected with the power supply end of the mainboard and used for judging whether the impedance to ground is in a normal impedance range or not, if the impedance to ground is in the normal impedance range, the mainboard is controlled to be powered on, so that the data acquisition module 1 detects the output voltage of the power supply end; and judging whether the output voltage is in the normal voltage range, and controlling the mainboard to be powered off if the output voltage is not in the normal voltage range.
Considering that when the impedance to ground and the output voltage of the power supply end of the functional module on the mainboard are measured manually, the gear needs to be manually selected, the power supply end needs to be manually connected, and the like, the speed is slow, and manual errors can occur.
In order to solve the above technical problem, in the present application, a data acquisition module 1 and a processing module 2 are used, specifically, the data acquisition module 1 acquires the impedance to ground and the output voltage of a power supply terminal, and then the processing module 2 determines the acquired impedance to ground or the output voltage to determine whether the impedance to ground or the output voltage is within a normal range. If the electronic components are all in the normal range, the electronic components welded on the mainboard in the PCBA process are judged to be normal, namely the mainboard is normal, and if the electronic components are not all in the normal range, the detection result can be fed back to the processing module 2 to inform a worker, so that the mainboard is maintained or directly abandoned, and the like.
It should be noted that, the processing module 2 in the present application may include, but is not limited to, a display module, and after detecting the motherboard, the detection result may be displayed on the display module, so that the worker can know the detection condition of the motherboard in time.
In addition, a bar code or other identifiers can be arranged on the main board, the main board is placed at a monitoring position, then the bar code is scanned, the grounding impedance and the output voltage are detected after the bar code is scanned, and then the detection result is stored in association with the bar code so as to be convenient for next query.
To sum up, this application can realize carrying out the function that detects to the power supply end of the functional module of mainboard, and detect the impedance to ground or output voltage of power supply end through data acquisition module 1 in this application, then judge the testing result through processing module 2, and processing speed is far greater than the speed that artifical detection and judgement, has improved the efficiency that detects greatly
On the basis of the above-described embodiment:
as a preferred embodiment, there are a plurality of functional modules on the motherboard;
the data acquisition module 1 is specifically used for detecting the impedance to ground of each power supply end when the mainboard is not powered on; after the mainboard is powered on, the output voltage of each power supply end is detected;
the processing module 2 is specifically configured to determine whether each impedance to ground is within a normal impedance range, and if each impedance to ground is within the normal impedance range, control the main board to be powered on, so that the data acquisition module 1 detects output voltages of the power supply terminals; and judging whether each output voltage is in a normal voltage range, and controlling the mainboard to be powered off if each output voltage is not in the normal voltage range.
Consider that the functional module on the mainboard may set up a plurality ofly, including communication module, wireless module and bluetooth module etc. on the mainboard, at this moment, need detect the impedance to ground and the output voltage of the power supply end of each functional module to guarantee that each functional module on the mainboard is can normal use.
Specifically, the data acquisition module 1 respectively detects the power supply terminals of the plurality of functional modules, controls the main board to be powered on when the impedance to ground of each power supply terminal is within a normal impedance range, generally, the impedance to ground is about tens to hundreds of ohms, if the impedance to ground is very small, it can be determined that a short circuit phenomenon occurs, if the impedance to ground is infinite, it can be determined that an open circuit phenomenon occurs, it is directly determined that an error occurs in the PCBA process of the main board, the main board is not controlled to be powered on, only if the impedance to ground is entirely within the normal impedance range, the main board is controlled to be powered on, after the power is powered on, the data acquisition module 1 is controlled to a voltage level to detect the output voltage of each power supply terminal, if the output voltage of one of the power supply terminals is detected to be abnormal, that is not within the normal voltage range, the main board is immediately powered off, to prevent other modules in the motherboard from being damaged, etc.
It should be noted that, in the present application, the data acquisition module 1 may detect the plurality of power supply terminals in a manner that the ground impedances of the power supply terminals are sequentially detected in turn (or simultaneously), and corresponding detection results are stored. Then the mainboard is electrified, the output voltage of each power supply end is detected, and the corresponding detection result is stored, so that the next inquiry is facilitated. The detection is performed in turn or once, which depends on the actual situation, and the application is not particularly limited herein. In addition, the main board herein may be, but is not limited to, a main board applied in an intelligent blood glucose meter.
Therefore, the function of simultaneously detecting a plurality of power supply ends can be realized through the application, and the detection efficiency is further improved.
In addition, detection aiming at different main boards only needs to replace different needle bed structures and configure different schemes.
Referring to fig. 2, fig. 2 is a block diagram of another detection system provided by the present invention.
As a preferred embodiment, the processing module 2 comprises:
the upper computer 21 is connected with the data acquisition module 1 and used for judging whether each earth impedance is in a normal impedance range, if so, sending a power-on instruction to the power control module 22 to power on the mainboard, judging whether each output voltage is in a normal voltage range, and if not, sending a power-off instruction to the power control module 22 to power off the mainboard;
and the power control module 22 is connected with the input end of the upper computer 21 and the output end of the power control module is connected with the power end of the mainboard, and is used for controlling the mainboard to be powered on when receiving a power-on instruction and controlling the mainboard to be powered off when receiving a power-off instruction.
Specifically, the processing module 2 in the present application includes an upper computer 21 and a power control module 22, where the upper computer 21 is configured to control the power control module 22 according to a communication protocol to control a power-on or power-off action of the motherboard; the power control module 22 is used for controlling the power-on or power-off of the main board according to the instruction sent by the upper computer 21.
In summary, in this embodiment, the specific implementation manner of the processing module 2 can complete the function of the processing module 2, and the implementation manner is simple and reliable.
The upper computer 21 in the present application may include, but is not limited to, a display device to display the detection result, and may include, but is not limited to, a storage module to store the detection result, so as to perform subsequent query or call.
As a preferred embodiment, the power control module 22 includes:
the power module is connected with the power end of the mainboard at the output end and used for providing power to supply power to the mainboard;
the control module is used for controlling the power supply module to supply power to the mainboard when receiving a power-on instruction, and controlling the power supply module not to supply power to the mainboard when receiving a power-off instruction.
As a preferred embodiment, the control module is a single chip microcomputer.
Specifically, the power control module 22 includes a power module and a control module, the power module may be, but is not limited to, a rechargeable battery, and after the power of the rechargeable battery is exhausted, the rechargeable battery may be charged, so as to improve the utilization rate of the power module.
In addition, a switch may be disposed between the power module and the power source end of the motherboard, and specifically, when the control module receives a power-on command, the control switch is turned on to enable the power module to supply power to the motherboard through the switch, and when the control module receives a power-off command, the control switch is turned off to disable the power module to supply power to the motherboard through the switch, where the switch may be, but is not limited to, a relay.
In summary, the power module and the control module can realize the function of powering on the mainboard when receiving a power-on instruction and powering off the mainboard when receiving a power-off instruction, and the realization mode is simple.
As a preferred embodiment, the method further comprises the following steps:
the alarm device is connected with the processing module 2 and used for sending alarm information when receiving an alarm instruction;
the processing module 2 is further configured to send an alarm instruction to an alarm device when each impedance to ground is not within a normal impedance range or each output voltage is not within a normal voltage range.
In this embodiment, in order to detect when being inconsistent with the mainboard of standard, the staff can be more convenient timely discovery be inconsistent with the mainboard of standard, carry out timely processing to this mainboard, so add alarm device.
Specifically, when the processing module 2 determines that the motherboard is a motherboard that does not meet the standard (that is, when each impedance to ground is not within the normal impedance range or each output voltage is not within the normal voltage range), the processing module 2 sends an alarm instruction to the alarm device, and controls the alarm device to execute the alarm instruction, so as to send out alarm information.
Therefore, through the alarm device in the application, the mainboard that the staff in time finds out not to conform to the standard can be prompted, and the timeliness of processing and the accuracy of detection are improved.
As a preferred embodiment, the alarm device comprises one or more of an acoustic alarm device, a light alarm device, a vibration alarm device and a picture alarm device.
In this embodiment, the alarm device may use a sound alarm device and/or a light alarm device and/or a vibration alarm device and/or a picture alarm device, specifically, only one of the above alarm devices may be selected as the alarm device, that is, when it is confirmed that an alarm is issued, the sound alarm device issues sound alarm information; or the light alarm device sends out light alarm information; or the vibration alarm device sends out vibration alarm information, or the picture alarm device displays a picture of the mainboard which does not accord with the standard for prompting; also can two kinds or multiple jointly use, also there are light alarm device etc. in existing audible alarm device, be difficult to arouse staff's attention when single alarm device, for example the surrounding environment is noisy, when staff can't hear audible alarm, for example show that the warning is far away from the staff, when not in the sight range, can adopt the mode that two kinds or multiple alarm device combined, a plurality of selections are provided for alarm device's setting, the more timely accurate mainboard that is not conform to the standard of discovery of staff of being convenient for, and in time handle this mainboard.
The sound alarm device can be but not limited to a buzzer, and the light alarm device can be but not limited to an indicator light and the like.
In summary, the alarm manner in this embodiment can realize the function of alarming when a motherboard that does not meet the standard is found, so as to prompt the worker, and provide multiple possibilities of alarming.
As a preferred embodiment, the data acquisition module 1 comprises a data acquisition instrument and a data acquisition switch card;
the control end is connected with the processing module 2, the input end is connected with the data acquisition instrument, and the output end is connected with the power supply end of the functional module;
the data acquisition instrument is used for adjusting the measurement gear of the control end based on the acquisition control instruction, acquiring the impedance to ground of the corresponding power supply end through a channel conducted in the data acquisition switch card when the mainboard is not powered on, or acquiring the output voltage of the corresponding power supply end through the channel conducted in the data acquisition switch card after the mainboard is powered on;
the processing module 2 is further configured to generate a corresponding acquisition control instruction according to a preset scheme of the user.
In consideration of the possibility of detecting different types of motherboards, the ranges of the impedance to ground and the ranges of the output voltage corresponding to different motherboards may be different, that is, the data acquisition module 1 may need to adjust its own gear to increase the detection accuracy.
Based on this, processing module 2 in this application generates corresponding collection control instruction according to user's preset scheme to make data acquisition appearance adjust own detection gear and range, wherein, user's preset scheme is corresponding with the mainboard, and the preset scheme is the design specification of the corresponding mainboard. In addition, when detecting one or more power supply terminals, the detection is realized through a data acquisition switch card, wherein the data acquisition switch card is an N-channel multiplexer, N is greater than 1, and a plurality of channels are led out so that data acquisition can be carried out on a plurality of power supply terminals, and of course, only one power supply terminal can be detected. When the acquisition control instruction is received, the channel corresponding to the acquisition control instruction is controlled to be conducted, so that the data acquisition instrument detects the output voltage or the impedance to ground of the corresponding power supply end through the channel, and the detection efficiency is improved.
In a preferred embodiment, the data acquisition instrument is a data acquisition instrument of model number Agilent 34970A.
Specifically, the data acquisition in the present application may be, but is not limited to, a data acquisition instrument with model number 34970a, and the data acquisition instrument with this model number is better in performance and stronger in stability, and may be, of course, other data acquisition instruments as long as it can detect multiple sets of impedance to ground or output voltage, and the present application is not particularly limited herein.
As a preferred embodiment, the data acquisition switch card is a data acquisition switch card with model number agilent 34901A.
Referring to fig. 3, fig. 3 is a schematic diagram of an internal switch structure of a data acquisition switch card according to the present invention.
Specifically, the data acquisition switch card in the present application may be, but is not limited to, a data acquisition switch card with a model number of 34901A, and the data acquisition switch card of 34901A has 20 sets of resistance voltage acquisition channels and 2 sets of current channels, that is, in the present application, the data acquisition instrument may detect no more than 20 power supply terminals through the data acquisition switch card with a model number of 34901A, and when the number of the power supply terminals exceeds 20, a plurality of data acquisition switch cards may be used, and the present application is not limited. Wherein, when receiving the acquisition control instruction, the data acquisition switch card controls the switch that self corresponds with the acquisition control instruction to switch on to make the inside universal meter of data acquisition appearance can detect the output voltage of the power supply end that corresponds or to earth resistance through the passageway that this switch corresponds, improve the efficiency that detects. In addition, the data acquisition switch card with the type is better in performance and stronger in stability.
Of course, other data acquisition switch cards may be used as long as the detection of multiple sets of impedance to ground or output voltage can be achieved, and the present application is not limited in particular herein.
It is to be noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A detection system, comprising:
the data acquisition module is connected with the power supply end of the functional module on the mainboard at the detection end and is used for detecting the impedance to ground of the power supply end when the mainboard is not electrified; after the mainboard is powered on, detecting the output voltage of the power supply end;
the input end of the processing module is connected with the data acquisition module, the output end of the processing module is connected with the power supply end of the mainboard, and the processing module is used for judging whether the impedance to ground is in a normal impedance range or not, and controlling the mainboard to be electrified if the impedance to ground is in the normal impedance range so that the data acquisition module detects the output voltage of the power supply end; and judging whether the output voltage is in a normal voltage range, and controlling the mainboard to be powered off if the output voltage is not in the normal voltage range.
2. The detection system according to claim 1, wherein the functional module on the main board is plural;
the data acquisition module is specifically used for detecting the impedance to ground of each power supply end when the mainboard is not powered on; after the mainboard is powered on, detecting the output voltage of each power supply end;
the processing module is specifically configured to determine whether each impedance to ground is within a normal impedance range, and if each impedance to ground is within the normal impedance range, control the main board to be powered on so that the data acquisition module detects output voltages of the power supply terminals; and judging whether the output voltages are within a normal voltage range, and controlling the mainboard to be powered off if the output voltages are not within the normal voltage range.
3. The detection system of claim 2, wherein the processing module comprises:
the upper computer is connected with the data acquisition module and used for judging whether each grounding impedance is in a normal impedance range, if so, sending a power-on instruction to the power control module to power on the mainboard, judging whether each output voltage is in a normal voltage range, and if not, sending a power-off instruction to the power control module to power off the mainboard;
the power supply control module is used for controlling the mainboard to be powered on when the power-on instruction is received, and controlling the mainboard to be powered off when the power-off instruction is received.
4. The detection system of claim 3, wherein the power control module comprises:
the power supply module is connected with the power supply end of the mainboard at the output end and used for providing power supply to supply power for the mainboard;
the control module is connected with the control end of the power module at the input end and is used for controlling the power module to supply power to the mainboard when receiving the power-on instruction and controlling the power module not to supply power to the mainboard when receiving the power-off instruction.
5. The detection system of claim 4, wherein the control module is a single chip.
6. The detection system of claim 1, further comprising:
the alarm device is connected with the processing module and used for sending alarm information when receiving an alarm instruction;
the processing module is further used for sending an alarm instruction to the alarm device when each impedance to ground is not in a normal impedance range or each output voltage is not in a normal voltage range.
7. The detection system according to claim 6, wherein the alarm device comprises one or more of an audible alarm device, a light alarm device, a vibration alarm device, and a visual alarm device.
8. The detection system according to any one of claims 1 to 7, wherein the data acquisition module comprises a data acquisition instrument and a data acquisition switch card;
the control end is connected with the processing module, the input end is connected with the data acquisition instrument, and the output end is connected with the power supply end of the functional module;
the data acquisition instrument with a control end connected with the processing module is used for adjusting a measurement gear of the data acquisition instrument based on the acquisition control instruction, acquiring the impedance to ground of the corresponding power supply end through a channel conducted in the data acquisition switch card when the mainboard is not powered on, or acquiring the output voltage of the corresponding power supply end through the channel conducted in the data acquisition switch card after the mainboard is powered on;
the processing module is further used for generating a corresponding acquisition control instruction according to a preset scheme of a user.
9. The detection system of claim 8, wherein the data acquisition instrument is a data acquisition instrument model number Agilent 34970A.
10. The detection system of claim 8, wherein the data acquisition switch card is a data acquisition switch card model number Agilent 34901A.
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| CN202120695099.7U CN215263847U (en) | 2021-04-06 | 2021-04-06 | Detection system |
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