CN110806532B - Pre-amplifier detection system of EH4 - Google Patents
Pre-amplifier detection system of EH4 Download PDFInfo
- Publication number
- CN110806532B CN110806532B CN201911168571.5A CN201911168571A CN110806532B CN 110806532 B CN110806532 B CN 110806532B CN 201911168571 A CN201911168571 A CN 201911168571A CN 110806532 B CN110806532 B CN 110806532B
- Authority
- CN
- China
- Prior art keywords
- detection
- unit
- control unit
- interface
- host
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2832—Specific tests of electronic circuits not provided for elsewhere
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Debugging And Monitoring (AREA)
Abstract
The invention belongs to the technical field of fault detection, and particularly relates to an EH4 preamplifier detection system, which comprises: the detection unit is used for carrying out fault detection on the interface of the preamplifier; the control unit is used for controlling the state of the detection unit, the state of the detection unit comprises initialization, and the control unit is also used for receiving the detection result of the detection unit and controlling the display unit to display the detection result; the display unit is used for displaying the detection result; the access unit is used for accessing the host interface to enable the control unit to communicate with the host; after receiving the detection result, the control unit controls the display unit to display; when the control unit establishes communication with the host, the host is suspended from running; and when the detection result received by the control unit is normal, the control unit sends a normal starting signal to the host. By using the method and the device, even a new person without operation experience can complete fault detection of the interface of the preamplifier.
Description
Technical Field
The invention belongs to the technical field of fault detection, and particularly relates to a preamplifier detection system of EH 4.
Background
The EH4 electromagnetic imaging system belongs to a magnetotelluric depth-finding system with a combination of partially controllable sources and natural sources. The deep structure is imaged by a natural background field source (MT), and the information source is 10 Hz-100 kHz. The shallow structure transmits 1-100 kHz artificial electromagnetic signals through a novel portable low-power transmitter to compensate the deficiency of natural signals, thereby obtaining high-resolution imaging.
At present, the EH4 system is widely applied in China, and the application field relates to water finding in arid water-deficient areas, engineering geological exploration, mineral resource exploration and the like. However, in field operation, the device is susceptible to various influences such as weather abnormality, long-distance pole arrangement, human factors and the like, and the interface of the device is prone to failure, especially the interface of the preamplifier.
However, the troubleshooting work of the preamplifier of EH4 is troublesome, not only is the operation complicated, but also enough troubleshooting experience is required, and thus, the measuring effect and the measuring process are directly influenced; meanwhile, the preamplifier requires grounding to protect the instrument, so that the precision of the instrument is ensured, the interference is reduced, but a grounding signal is easy to ignore in the actual operation process, and particularly for novices without operation experience, the difficulty of fault detection is further increased.
Therefore, there is a need for a preamplifier testing system for EH4 that enables novice personnel to quickly and easily perform fault detection of EH4 preamplifiers.
Disclosure of Invention
The invention aims to provide a preamplifier detection system of EH4, which enables a novice to quickly and conveniently detect the fault of an EH4 preamplifier.
The basic scheme provided by the invention is as follows:
a preamplifier detection system of EH4, comprising:
the detection unit is used for carrying out fault detection on the interface of the preamplifier;
the control unit is electrically connected with the detection unit and used for controlling the state of the detection unit, the state of the detection unit comprises initialization, and the control unit is also used for receiving the detection result of the detection unit and controlling the display unit to display the detection result;
the display unit is used for displaying the detection result;
the access unit is used for accessing the host interface to enable the control unit to communicate with the host;
after receiving the detection result, the control unit controls the display unit to display; when the control unit establishes communication with the host, the host is suspended from running; and when the detection result received by the control unit is normal, the control unit sends a normal starting signal to the host.
Basic scheme theory of operation and beneficial effect:
when the detection is carried out, the access unit is accessed into the host, the control unit is communicated with the host, and the control unit suspends the host. And then, the detection unit detects the interface of the preamplifier, the detection unit sends the detection result to the control unit, and the control unit controls the display unit to display the detection result.
By observing the display unit, whether the interface has a fault or not can be intuitively known. Meanwhile, when the detection result is normal, the control unit sends a normal starting signal to the host through the access unit, and the host is started normally.
In addition, the control unit in the application suspends the operation of the host after communicating with the host, and controls the host to normally continue normal starting when the detection result is normal (namely, no obstacle). Therefore, the situation that the host computer is in failure due to the fact that the host computer is started when the interface is abnormal can be prevented, and safe starting of the host computer can be guaranteed.
The display unit is arranged, so that on one hand, the display unit can enable workers to visually know the detection result. On the other hand, if the display unit is not provided, and the host is not normally started after detection, the detection system may have problems except the interface failure, and the host cannot be driven to start; after the display unit is added, if the host is not normally started after detection, the detection result can be known by observing the display unit, and if the display unit does not display, the problem occurs in the control unit or the detection unit.
Put another way, after the display unit is added, when the detected result is abnormal, the reason of the abnormality can be rapidly known, and the system can be conveniently checked for abnormality.
Compared with the prior art, even if a new person without operation experience needs to access the access unit into the host interface and connect the interface to be detected with the detection unit, whether the interface has a fault can be intuitively and quickly known in a visual mode through the display unit.
Further, the access unit is a CY7C68001 chip.
The CY7C68001 USB chip integrates two functions of a USB transceiver and a USB serial interface engine, and can ensure data communication between a detection system and a detection interface. In addition, because the CY7C68001 integrates a serial interface, bidirectional communication can be realized only by one pair of transmission lines, and the whole structure of the detection system can be simpler.
Further, the control unit is an embedded system based on ARM 9.
The embedded system is only aimed at a special task, and a designer can optimize the embedded system, so that the size is reduced, and the cost is reduced. In addition, the ARM chip has the characteristics of small size, low power consumption, low cost and high performance, and the ARM9 embedded system is used as a control unit, so that the whole size of the detection system can be reduced.
Further, the control unit is also used for carrying out initialization setting on the detection unit when the communication with the host computer is established.
Therefore, before each detection, the control unit can initialize the detection unit, so that detection errors caused by non-initialization can be prevented, and the accuracy of the detection result can be ensured.
Further, the detection unit is an LM339 voltage comparator.
The LM339 voltage comparator is used as a professional voltage comparator and has the advantages of high switching speed, short delay time and the like.
Further, the display unit is an LED lamp.
Through the on or off of the LED lamp, whether the detected interface is normal can be intuitively known.
Furthermore, the display unit comprises two LED lamps with different colors, the two LED lamps respectively indicate that the interface is normal and abnormal, and the control unit controls the corresponding LED lamps to be turned on according to the detection result of the detection unit.
Through the LED lamps of two different colours, whether the interface that can audio-visually understand the detection is normal. Compared with the case of only using one LED lamp, when the LED lamp breaks down, the worker cannot know the situation in time, and the situation of detection errors can occur. And two LED lamps are used, and only one lamp is needed to be turned on during detection, so that the condition can be effectively avoided.
The device further comprises a shell, the control unit and the detection unit are integrated in the shell, a detection interface of the detection unit penetrates through the shell and is exposed outside the shell, and the access unit and the display unit are embedded in the shell.
In this way, the units can be integrated together for portability and use.
Further, the two LED lamps are respectively red and green.
These two colors are conspicuous.
Further, when the detection result of the detection unit is that the interface is normal, the control unit controls the green LED lamp beads to light up; when the detection result of the detection unit is that the interface is abnormal, the control unit controls the red LED lamp beads to light.
Compared with green, the red color is more striking, and meanwhile, the red color is associated with errors, so that the daily habit of people is more met.
Drawings
FIG. 1 is a logic block diagram of a first embodiment of a preamplifier detection system of EH4 in accordance with the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
example one
As shown in fig. 1, a preamplifier detection system of EH4 includes an access unit, a detection unit, a control unit, a display unit, and a housing.
The access unit is used for connecting the interface to be detected with the detection unit; in this embodiment, the access unit is a CY7C68001 chip. Because the CY7C68001 USB chip integrates two functions of a USB transceiver and a USB serial interface engine, data communication between the detection system and the detection interface can be guaranteed. In addition, because the CY7C68001 integrates a serial interface, bidirectional communication can be realized only by one pair of transmission lines, and the whole structure of the detection system can be simpler.
The detection unit is used for carrying out fault detection on the interface, and specifically, the detection unit is an LM339 voltage comparator. Through the detection unit, each interface of the preamplifier can be rapidly detected. Meanwhile, the LM339 voltage comparator serving as a professional voltage comparator has the advantages of high switching speed, short delay time and the like.
The control unit realizes initialization, interruption, communication and related control among the modules based on the C language. In this embodiment, the control unit is an embedded system based on ARM 9.
Specifically, the control unit is used for suspending the operation of the host computer and carrying out initialization setting on the detection unit when the control unit is connected with the host computer for communication; when the detection result fed back by the detection unit is received, the control unit controls the display unit to display; and when the received detection result is normal, the control unit sends a normal starting signal to the host.
The display unit is used for displaying the detection result of the detection unit. Specifically, the display units are two LED lamp beads with different colors, in this embodiment, the display units are a red LED lamp bead and a green LED lamp bead; when the detection result of the detection unit is that the interface is normal, the control unit controls the green LED lamp beads to emit light; when the detection result of the detection unit is that the interface is abnormal, the control unit controls the red LED lamp beads to emit light.
The shell is used for integrating the access unit, the detection unit, the control unit and the display unit, wherein the control unit and the detection unit are integrated in the shell, the detection interface of the detection unit penetrates through the shell to be exposed outside the shell, and the access unit and the display unit are embedded in the shell. Therefore, the whole structure of the system is more neat and convenient to carry and use.
Meanwhile, as the CY7C68001 integrates a serial interface, bidirectional communication can be realized only by one pair of transmission lines, so that the whole structure of the detection system is simpler; the use of an ARM9 embedded system as a control unit can further reduce the overall volume of the detection system.
The specific implementation process is as follows:
when the interface of the preamplifier of the EH4 is detected, the access unit, i.e., the USB interface, is accessed to the host, the control unit establishes communication with the host, the control unit suspends the operation of the host, and the control unit also performs initialization setting on the detection unit. Therefore, before each detection, the control unit can initialize the detection unit, so that detection errors caused by non-initialization can be prevented, and the accuracy of the detection result can be ensured.
And then, a signal wire is led out from an interface of the preamplifier to be detected and is connected into the detection unit, the detection unit detects the interface, whether the interface is normal or not is checked, and the detection result is fed back to the control unit.
And after the control unit receives the detection result fed back by the detection unit, the control unit controls the display unit to display the detection result. Specifically, if the detection result of the detection unit is that the interface is normal, the control unit controls the green LED lamp bead of the display unit to light; and if the detection result of the detection unit is that the interface is abnormal, the control unit controls the red LED lamp bead of the display unit to light. Through the display unit, the staff can intuitively know whether the interface to be detected has a fault.
If the display unit is not available, the host is not normally started after detection, and besides the interface has a fault, the host can be possibly driven to start because the detection system has a problem; after the display unit is added, if the host is not normally started after detection, the detection result can be known by observing the display unit, and if the display unit does not display, the problem occurs in the control unit or the detection unit. Put another way, after the display unit is added, when the detected result is abnormal, the reason of the abnormality can be rapidly known, and the system can be conveniently checked for abnormality.
When the detection result is normal (namely no barrier), the host is controlled to normally continue normal starting. Therefore, the situation that the host computer is in failure due to the fact that the host computer is started when the interface is abnormal can be prevented, and safe starting of the host computer can be guaranteed.
Compared with the prior art, the system can successfully detect the interface of the EH4 preamplifier even by a novice person without operation experience.
Example two
When detecting the interface, because insert the voltage comparator through the access mouth and connect, after voltage comparator has used for a long time, the contact resistance between access mouth and the lead wire may be very big, and at this moment, the voltage of access voltage comparator can be more or less than the true voltage of interface that awaits measuring.
In order to avoid the detection result error caused by the problem of the lead wire, unlike the first embodiment, the two inlets of the voltage comparator are inlet a and inlet B. When the initial detection result is that the abnormality exists, the controller records and initializes the internal program and the voltage comparator, and if the received signal is detected to be abnormal again, the controller controls the host to be normally started.
The implementation process comprises the following steps:
during primary detection, the access port A accesses a lead of the interface to be detected into the voltage comparator, the access port B accesses a voltage reference end into the voltage comparator, and if the result of the primary detection is abnormal, the voltage of the interface to be detected is lower than the voltage reference end. The controller records and initializes the internal program and the voltage comparator.
The staff can take off the back with the voltage reference section with the lead wire of the interface that detects, reuse access port B inserts the voltage comparator with the lead wire of the interface that detects, and access port A inserts the voltage comparator with the voltage reference end. At this time, if the detection result is still abnormal, it indicates that the voltage of the interface to be detected is higher than the voltage reference end as the result of the re-detection.
The access objects of the two detections are the same, the detection results are different, the voltage of the interface to be detected is detected to be lower than the voltage reference end for the first time, and the voltage of the interface to be detected is detected to be higher than the voltage reference end for the second time. The inlet a generates a large contact resistance during detection.
Therefore, if the detection result is still abnormal, the voltage of the interface to be detected is normal, and at the moment, the controller controls the host to be started normally.
The foregoing is merely an example of the present invention, and common general knowledge in the field of known specific structures and characteristics is not described herein in any greater extent than that known in the art at the filing date or prior to the priority date of the application, so that those skilled in the art can now appreciate that all of the above-described techniques in this field and have the ability to apply routine experimentation before this date can be combined with one or more of the present teachings to complete and implement the present invention, and that certain typical known structures or known methods do not pose any impediments to the implementation of the present invention by those skilled in the art. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (9)
1. A preamplifier detection system of EH4, comprising:
the detection unit is used for carrying out fault detection on the interface of the preamplifier;
the control unit is electrically connected with the detection unit and used for controlling the state of the detection unit, the state of the detection unit comprises initialization, and the control unit is also used for receiving the detection result of the detection unit and controlling the display unit to display the detection result;
the display unit is used for displaying the detection result;
the access unit is used for accessing the host interface to enable the control unit to communicate with the host;
after receiving the detection result, the control unit controls the display unit to display; when the control unit establishes communication with the host, the host is suspended from running; when the detection result received by the control unit is normal, the control unit sends a normal starting signal to the host;
the detection unit is an LM339 voltage comparator; the two access ports of the voltage comparator are respectively an access port A and an access port B, when the first detection is carried out, the access port A accesses a lead wire of an interface to be detected into the voltage comparator, the access port B accesses a voltage reference end into the voltage comparator, and if the first detection result shows that the abnormality exists, the controller records and initializes an internal program and the voltage comparator; then, after the lead wire and the voltage reference section of the interface to be detected are taken down, the lead wire of the interface to be detected is connected into the voltage comparator through the access port B, and the voltage reference end is connected into the voltage comparator through the access port A; if the detection result is still abnormal, the controller controls the host to be normally started.
2. The preamplifier detection system of EH4, according to claim 1, wherein: the access unit is a CY7C68001 chip.
3. The preamplifier detection system of EH4, according to claim 1, wherein: the control unit is an embedded system based on ARM 9.
4. The preamplifier detection system of EH4, according to claim 1, wherein: the control unit is also used for carrying out initialization setting on the detection unit when the communication with the host computer is established.
5. The preamplifier detection system of EH4, according to claim 1, wherein: the display unit is an LED lamp.
6. The preamplifier detection system of EH4, according to claim 5, wherein: the display unit comprises two LED lamps with different colors, the two LED lamps respectively indicate that the interface is normal and abnormal, and the control unit controls the corresponding LED lamps to be turned on according to the detection result of the detection unit.
7. The preamplifier detection system of EH4, according to claim 1, wherein: the device also comprises a shell, the control unit and the detection unit are integrated in the shell, and the access unit and the display unit are embedded in the shell.
8. The preamplifier detection system of EH4, according to claim 6, wherein: the two LED lamps are respectively red and green.
9. The preamplifier detection system of EH4, according to claim 8, wherein: when the detection result of the detection unit is that the interface is normal, the control unit controls the green LED lamp beads to light up; when the detection result of the detection unit is that the interface is abnormal, the control unit controls the red LED lamp beads to light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911168571.5A CN110806532B (en) | 2019-11-25 | 2019-11-25 | Pre-amplifier detection system of EH4 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911168571.5A CN110806532B (en) | 2019-11-25 | 2019-11-25 | Pre-amplifier detection system of EH4 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110806532A CN110806532A (en) | 2020-02-18 |
| CN110806532B true CN110806532B (en) | 2021-01-08 |
Family
ID=69491480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911168571.5A Active CN110806532B (en) | 2019-11-25 | 2019-11-25 | Pre-amplifier detection system of EH4 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110806532B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0042878A1 (en) * | 1980-06-25 | 1982-01-06 | Kommanditgesellschaft Ritz Messwandler GmbH & Co. | Device for monitoring an amplifier stage |
| CN201392367Y (en) * | 2009-02-13 | 2010-01-27 | 苏州热工研究院有限公司 | Tracking instrument for micro current contact resistance variation trend |
| CN204827996U (en) * | 2015-08-04 | 2015-12-02 | 广东爱迪贝克软件科技有限公司 | Circuit is listened to direct current fan trouble |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101946486B1 (en) * | 2012-08-23 | 2019-04-26 | 삼성전자 주식회사 | Ear-phone Operation System and Ear-phone Operating Method, and Portable Device supporting the same |
| CN203838301U (en) * | 2013-11-14 | 2014-09-17 | 中国船舶重工集团公司第七一五研究所 | Automatic testing device for pre-amplifier |
| CN209417224U (en) * | 2018-11-06 | 2019-09-20 | 大族激光科技产业集团股份有限公司 | A kind of preamplifier test device |
-
2019
- 2019-11-25 CN CN201911168571.5A patent/CN110806532B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0042878A1 (en) * | 1980-06-25 | 1982-01-06 | Kommanditgesellschaft Ritz Messwandler GmbH & Co. | Device for monitoring an amplifier stage |
| CN201392367Y (en) * | 2009-02-13 | 2010-01-27 | 苏州热工研究院有限公司 | Tracking instrument for micro current contact resistance variation trend |
| CN204827996U (en) * | 2015-08-04 | 2015-12-02 | 广东爱迪贝克软件科技有限公司 | Circuit is listened to direct current fan trouble |
Non-Patent Citations (1)
| Title |
|---|
| 静态效应的小波阈值法和EMAP校正在EH4数据处理中的应用;龚玉蓉 等;《云南大学学报（自然科学版）》;20171231;第39卷(第S2期);正文第264至268页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110806532A (en) | 2020-02-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2023169338A1 (en) | Ocean bottom node data collection device, and method | |
| CN108910077A (en) | Online test method before unmanned plane flies | |
| CN110806532B (en) | Pre-amplifier detection system of EH4 | |
| CN107765117B (en) | A kind of test device and method of optical module self-healing | |
| TWI814946B (en) | Indicator for ac power adapter | |
| CN108957164A (en) | A kind of test device and test method of buckle | |
| CN108361020B (en) | Virtual instrument-based diagnosis and protection device and method for tunnel drilling machine | |
| CN111241015A (en) | Master-slave CPU circuit structure, method and storage medium capable of realizing USB interface multiplexing | |
| CN104914376A (en) | Digital circuit state detection circuit and digital circuit state detection method | |
| CN108332623B (en) | A kind of Multifunctional compound fuze intelligent detecting instrument | |
| CN106772560A (en) | The node type seismic prospecting instrument and control method of real-time monitoring wave detector state | |
| CN106226034A (en) | Automatic test method for various LED indicator lamps of server | |
| CN104111637A (en) | Outdoor data acquisition and control equipment | |
| CN104699648B (en) | A kind of intelligent regulator devices of SDI 12 | |
| US20230177221A1 (en) | Establishing a trusted connection with a peripheral device | |
| CN208608752U (en) | A kind of charge indication means and the charging data line with the device | |
| CN106950034A (en) | Light source state detecting system and method | |
| CN201477176U (en) | Cable marker checking device | |
| CN210536663U (en) | Multifunctional network detection system | |
| CN110943888B (en) | Convenient full-function serial port detection method and device | |
| CN105930293A (en) | Serial transceiving interface module and USB (universal serial bus) interface module shared port circuit and working method | |
| CN208520892U (en) | ABS wheel speed sensors based on AK communication protocol | |
| CN104252430A (en) | State indicating method and electronic equipment | |
| CN209542797U (en) | A kind of simple motor simulation test mechanism | |
| CN110347139A (en) | A kind of test fixture of I2C bus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |