CN107271792B - Integrated portable electromagnetic environment testing equipment - Google Patents
Integrated portable electromagnetic environment testing equipment Download PDFInfo
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- CN107271792B CN107271792B CN201710519012.9A CN201710519012A CN107271792B CN 107271792 B CN107271792 B CN 107271792B CN 201710519012 A CN201710519012 A CN 201710519012A CN 107271792 B CN107271792 B CN 107271792B
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- main control
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- frequency microwave
- microwave switch
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/0864—Measuring electromagnetic field characteristics characterised by constructional or functional features
- G01R29/0871—Complete apparatus or systems; circuits, e.g. receivers or amplifiers
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- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention relates to an integrated portable electromagnetic environment testing device, which comprises a main control circuit unit and a radio frequency channel unit, wherein a main control circuit board of the main control circuit unit is respectively connected with a switch filtering component, a low noise amplifier and a plurality of radio frequency microwave switches of the radio frequency channel unit, the switching of radio frequency channel paths can be controlled by the main control circuit board according to actual testing requirements, meanwhile, the arrangement of electromagnetic environment testing can be realized through an integrated electronic compass, a temperature and humidity sensor, an atmospheric pressure sensor, a horizontal rotating cradle head, a GPS receiver and the like, the stability of the testing device and the adaptability of complex environment testing can be improved, and the system maintenance and the device carrying can be facilitated.
Description
Technical Field
The invention relates to the field of electromagnetic environment testing, in particular to integrated portable electromagnetic environment testing equipment.
Background
The electromagnetic environment is composed of three elements of time, space and frequency spectrum, and is used for electromagnetic environment testing, namely acquiring and analyzing frequency band signals in a certain position area in given time. In order to improve the sensitivity of the electromagnetic environment testing system, a filter, a low-noise amplifier and other devices are matched; in order to obtain the azimuth angle and the pitch angle of the signal, an electronic compass, a rotary table and a pitch adjusting device are matched; in order to obtain the information of the tested geographic environment, a GSP (global positioning system), a temperature and humidity tester and the like are matched for use. At present, when electromagnetic environment tests are carried out at home and abroad, the used test accessories are independent or all-in-one devices, and are not completely integrated, so that inconvenience in carrying and installation is brought to field tests.
Disclosure of Invention
The invention aims to provide an integrated portable electromagnetic environment testing device, which integrates a traditional electronic compass, a GPS positioning device and a temperature and humidity detection device, can control the conversion of a radio frequency channel path through a main control circuit, can turn on or off devices such as a display module, a horizontal motor, a pitching motor, an electronic compass and the like according to needs, is convenient to carry and manage, can adapt to complex environment testing, and is easier to maintain a system.
The invention is realized by the following steps:
the integrated portable electromagnetic environment testing equipment comprises a main control circuit unit and a radio frequency channel unit;
the radio frequency channel unit comprises a radio frequency input end, a microwave rotary joint, a first radio frequency microwave switch, a second radio frequency microwave switch, a switch filtering component, a high-pass filter, a third radio frequency microwave switch, a low noise amplifier, a fourth radio frequency microwave switch and a radio frequency output end; the radio frequency input end is connected with the first radio frequency microwave switch through a microwave rotary joint, the first output end of the first radio frequency microwave switch is connected with the fourth radio frequency microwave switch, the second output end of the first radio frequency microwave switch is connected with the input end of the second radio frequency microwave switch, the first output end of the second radio frequency microwave switch is connected with the first input end of the third radio frequency microwave switch through a switch filtering component, the second output end of the second radio frequency microwave switch is connected with the second input end of the third radio frequency microwave switch through a high pass filter, the output end of the third radio frequency microwave switch is connected with the input end of the low noise amplifier, the output end of the low noise amplifier is connected with the second input end of the fourth radio frequency microwave switch, and the output end of the fourth radio frequency microwave switch is connected with the radio frequency output end;
the main control circuit unit comprises a main control circuit board, a zero-crossing detection module, a key function module, a display module, a GPS receiver, a slip ring, a motor driving module and a power supply module; the signal end of the main control circuit board is respectively connected with the signal ends of the zero-crossing detection module, the key function module, the display module, the GPS receiver, the slip ring and the motor driving module, and the power supply module respectively supplies electric energy to the main control circuit board, the zero-crossing detection module, the key function module, the display module, the GPS receiver, the slip ring and the motor driving module;
the signal control ends of the first radio frequency microwave switch, the second radio frequency microwave switch, the third radio frequency microwave switch and the fourth radio frequency microwave switch are respectively connected with the first signal end of the main control circuit board through signal lines, the switch filter assembly is respectively connected with the second signal end of the main control circuit board through signal lines, and the voltage signal end of the low noise amplifier is connected with the third signal port of the main control circuit board.
Furthermore, in the preferred embodiment of the invention, the device also comprises a horizontal rotating cradle head, a multi-antenna selection switch and an electronic compass, wherein the horizontal rotating cradle head is provided with a directional test antenna, so that 360-degree automatic rotation in a horizontal direction can be realized, and a signal wire of the multi-antenna selection switch is connected with a signal end of the main control circuit board through the slip ring; and a signal wire of the electronic compass is connected with a signal port of the main control circuit board through the slip ring and is arranged on the outside of the device, and the electronic compass is used for determining the true north direction and acquiring the azimuth angle of an interference signal in the test process.
Further, in a preferred embodiment of the present invention, the system further includes a pitching motor and a horizontal motor, a signal line of the pitching motor is connected to a signal end of the motor driving module through the slip ring, and a signal end of the horizontal motor is directly connected to a signal end of the motor driving module.
Further, in a preferred embodiment of the present invention, the electronic device further includes a temperature and humidity sensor and an atmospheric pressure sensor, the temperature and humidity sensor and the atmospheric pressure sensor are respectively connected to the main control circuit board, the temperature and humidity sensor is used for acquiring an ambient temperature and an ambient humidity, and the atmospheric pressure sensor is used for acquiring an atmospheric pressure of an environment.
Further, in a preferred embodiment of the present invention, the display module includes a display screen and a control keyboard, the display screen and the control keyboard are respectively connected to the main control circuit board through signal lines, and the control keyboard includes a radio frequency channel switching button, a horizontal direction rotation button, and a pitch angle adjustment button.
Further, in a preferred embodiment of the present invention, the main control circuit board is further provided with a power management module, and the power management module is used for managing the power supply module.
The invention has the beneficial effects that:
(1) the microwave rotary joint, the switch filter assembly and the radio frequency microwave switches are respectively connected with the main control circuit board, and the main control circuit board can control the conversion of a radio frequency channel path according to the actual test requirement;
(2) the main control circuit unit integrates a plurality of external devices such as a GPS receiver, a temperature and humidity sensor, an atmospheric pressure sensor, an electronic compass, a horizontal motor, a pitching motor and the like, can manage and allocate various functional devices, is easy to realize the deployment of an electromagnetic environment testing system, and is convenient to carry and manage;
(3) the stability of the test system and the adaptability of complex environment test can be improved through integrated integration, and meanwhile, the system maintenance is easier.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural view of the present invention;
in the figure, 10-a main control circuit board, 11-a motor driving module, 12-a slip ring, 13-a GPS receiver, 14-a display module, 15-a key function module, 16-a zero-crossing detection module, 17-a power supply module, 18-a temperature and humidity sensor, 19-an atmospheric pressure sensor, 20-a multi-antenna selection switch, 21-an electronic compass, 22-a pitching motor, 23-a horizontal motor, 24-a radio frequency input end, 25-a microwave rotary joint, 26-a first radio frequency microwave switch, 27-a second radio frequency microwave switch, 28-a switch filtering component, 29-a high-pass filter, 30-a third radio frequency microwave switch, 31-a low noise amplifier, 32-a fourth radio frequency microwave switch and 33-a radio frequency output end.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
Example (b):
an integrated portable electromagnetic environment testing device, please refer to fig. 1, a main control circuit unit and a radio frequency channel unit;
the radio frequency channel unit comprises a radio frequency input end 24, a microwave rotary joint 25, a first radio frequency microwave switch 26, a second radio frequency microwave switch 27, a switch filtering component 28, a high-pass filter 29, a third radio frequency microwave switch 30, a low noise amplifier 31, a fourth radio frequency microwave switch 32 and a radio frequency output end 33; the radio frequency input end 24 is connected with the first radio frequency microwave switch 26 through a microwave rotary joint 25, the first output end of the first radio frequency microwave switch 26 is connected with the fourth radio frequency microwave switch 32, the second output end of the first radio frequency microwave switch 26 is connected with the input end of the second radio frequency microwave switch 27, the first output end of the second radio frequency microwave switch 27 is connected with the first input end of the third radio frequency microwave switch 30 through a switch filter component 28, the second output end of the second radio frequency microwave switch 27 is connected with the second input end of the third radio frequency microwave switch 30 through a high pass filter 29, the input end of the third radio frequency microwave switch 30 is connected with the input end of the low noise amplifier 31, the output end of the low noise amplifier 31 is connected with the second input end of the fourth radio frequency microwave switch 32, the output end of the fourth radio frequency microwave switch 32 is connected with a radio frequency output end 33;
the main control circuit unit comprises a main control circuit board 10, a zero-crossing detection module 16, a key function module 15, a display module 14, a GPS receiver 13, a slip ring 12, a motor driving module 11 and a power supply module 17; the signal end of the main control circuit board 10 is respectively connected with the signal ends of the zero-crossing detection module 16, the key function module 15, the display module 14, the GPS receiver 13, the slip ring 12 and the motor drive module 11, and the power supply module 17 is respectively used for supplying electric energy to the main control circuit board 10, the zero-crossing detection module 16, the key function module 15, the display module 14, the GPS receiver 13, the slip ring 12 and the motor drive module 11;
the signal control ends of the first radio frequency microwave switch 26, the second radio frequency microwave switch 27, the third radio frequency microwave switch 30 and the fourth radio frequency microwave switch 32 are respectively connected with the first signal end of the main control circuit board 10 through signal lines, the switch filter assembly 28 is respectively connected with the second signal end of the main control circuit board 10 through signal lines, and the voltage signal end of the low noise amplifier 31 is connected with the third signal port of the main control circuit board 10.
Further, in this embodiment, the electronic device further includes a temperature and humidity sensor 18 and an atmospheric pressure sensor 19, the temperature and humidity sensor 18 and the atmospheric pressure sensor 19 are respectively connected to the main control circuit board 10, the temperature and humidity sensor 18 is used for acquiring an ambient temperature and an ambient humidity, and the atmospheric pressure sensor 19 is used for acquiring an atmospheric pressure of an environment.
It should be noted that, in this embodiment, in order to solve the problem of a lot of test accessories in the electromagnetic environment, in this embodiment, the zero-cross detection module 16, the key function module 15, the display module 14, the GPS receiver 13, the slip ring 12, the motor drive module 11, and the power supply module 17 are all integrated into one device, the temperature and humidity sensor 18, the atmospheric pressure sensor 19, the GPS receiver 13, and the electronic compass 21 are controlled by the main control circuit board 10, and data information obtained by the above function devices is stored and uploaded to a network, and the like. The GPS receiver 13 receives signals by controlling a GPS antenna at the top of the receiver and is responsible for acquiring longitude and latitude of a test place; the electronic compass 21 is used for determining the true north direction and also for determining the incoming wave azimuth angle of the interference signal source if the interference signal source is encountered during the test.
Further, in this embodiment, the system further includes a horizontal rotation cradle head, a multi-antenna selection switch 20 and an electronic compass 21, the horizontal rotation cradle head is provided with a directional test antenna, so as to improve the sensitivity of the whole electromagnetic environment test system, and meanwhile, the horizontal rotation cradle head is used for enabling the directional test antenna to automatically rotate by 360 degrees in a horizontal direction, a signal line of the multi-antenna selection switch 20 is connected with a signal end of the main control circuit board 10 through a slip ring 12, wherein a pitching motor 22 is used for adjusting a wide range of the test antenna in a vertical angle, so as to well meet requirements of different test site environments and different test objects, such as mountains, low-lying places, plains and the like, and different test objects such as a satellite earth station, a microwave relay station, a radar station and the like.
Specifically, the present embodiment further includes a pitching motor 22 and a horizontal motor 23, a signal line of the pitching motor 22 is connected to the signal end of the motor driving module 11 through the slip ring 12, the signal ends of the horizontal motor 23 are directly connected to the signal ends of the motor driving module 11, the pitching motor 22 is used to adjust a wide range of the test antenna in a vertical angle, and the horizontal motor 23 is used to adjust a horizontal rotation pan/tilt head.
Further, in this embodiment, the radio frequency microwave rotary joint in the radio frequency channel unit solves the problem that the radio frequency channel cable entering the test equipment from the test antenna rotates in all directions by 360 degrees, and the electromagnetic environment test equipment further comprises a multi-path slip ring, so that the problem of cable routing control of external electronic compass 21, pitching motor 22 and multi-antenna switching is solved, and meanwhile, the problem of cable winding in 360 degrees is also solved.
It should be noted that, in this embodiment, the main control circuit board 10 can also control switching of radio frequency channels, where a plurality of radio frequency microwave switches, the switch filter component 28, the low noise amplifier 31, and the like are all connected to a signal end of the main control circuit board 10, and on one hand, the main control circuit board 10 provides power for these components, and on the other hand, can control multi-path switching of the radio frequency microwave switches, thereby implementing on-off of different paths. Meanwhile, the radio frequency channel also provides a frequency range of an ultra wide band, and the requirements of different electromagnetic environment testing tasks are guaranteed and met.
Further, in this embodiment, the display module 14 includes a display screen and a control keyboard, the display screen and the control keyboard respectively pass through signal lines and are connected to the main control circuit board 10, the control keyboard includes a radio frequency channel switching button, a horizontal direction rotation button and a pitch angle adjustment button, all the environment test data, the channel switching state, the horizontal direction angle and the pitch angle, the battery capacity and the like in this embodiment can be displayed through the display screen, and simultaneously, the functions of radio frequency channel switching, horizontal direction rotation, pitch angle adjustment and the like can also be realized through the control button.
Specifically, still be equipped with power management module on the main control circuit board 10, this power management module is used for managing power module 17, generally speaking, power module 17 of this embodiment is the lithium cell, the test equipment of this embodiment can be organized the power supply by inside lithium cell, the last power management module of its main control circuit board 10 can manage this lithium cell, guarantee that its charge-discharge function is normal, also provide stable operating voltage to each inside functional module of test equipment simultaneously, the inconvenience that brings because of the power problem when having solved field test.
It should be noted that, the embodiment is an integrated highly integrated portable device, and all elements or test accessories required by the electromagnetic environment test are integrated inside, so that not only are physical mechanisms for testing functions such as horizontal direction, pitch angle, multi-antenna switching and the like provided, but also components such as a radio frequency microwave switch, a switch filter assembly 28, a low noise amplifier 31 and the like required by the ultra-wideband frequency operation are provided; the display and operation functions are provided, and the stable power management function is also provided. The portable test equipment can be directly installed by using the antenna tripod and can also meet the requirement of vehicle-mounted installation, the design principle of portability and usability is adopted, the portable test equipment can be operated, used and installed without special testers, convenience is brought to field operation of the testers, and the test time and the manpower resources are saved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The integrated portable electromagnetic environment testing equipment is characterized by comprising a main control circuit unit and a radio frequency channel unit;
the radio frequency channel unit comprises a radio frequency input end, a microwave rotary joint, a first radio frequency microwave switch, a second radio frequency microwave switch, a switch filtering component, a high-pass filter, a third radio frequency microwave switch, a low noise amplifier, a fourth radio frequency microwave switch and a radio frequency output end; the radio frequency input end is connected with the first radio frequency microwave switch through a microwave rotary joint, the first output end of the first radio frequency microwave switch is connected with the fourth radio frequency microwave switch, the second output end of the first radio frequency microwave switch is connected with the input end of the second radio frequency microwave switch, the first output end of the second radio frequency microwave switch is connected with the first input end of the third radio frequency microwave switch through a switch filtering component, the second output end of the second radio frequency microwave switch is connected with the second input end of the third radio frequency microwave switch through a high pass filter, the output end of the third radio frequency microwave switch is connected with the input end of the low noise amplifier, the output end of the low noise amplifier is connected with the second input end of the fourth radio frequency microwave switch, and the output end of the fourth radio frequency microwave switch is connected with the radio frequency output end;
the main control circuit unit comprises a main control circuit board, a zero-crossing detection module, a key function module, a display module, a GPS receiver, a motor driving module and a power supply module; the signal end of the main control circuit board is respectively connected with the signal ends of the zero-crossing detection module, the key function module, the display module, the GPS receiver and the motor driving module, and the power supply module respectively supplies electric energy to the main control circuit board, the zero-crossing detection module, the key function module, the display module, the GPS receiver and the motor driving module;
the signal control ends of the first radio frequency microwave switch, the second radio frequency microwave switch, the third radio frequency microwave switch and the fourth radio frequency microwave switch are respectively connected with the first signal end of the main control circuit board through signal lines, the switch filter assembly is respectively connected with the second signal end of the main control circuit board through signal lines, and the voltage signal end of the low noise amplifier is connected with the third signal port of the main control circuit board.
2. The integrated portable electromagnetic environment testing device of claim 1, further comprising a horizontal rotation cradle head, a multi-antenna selection switch and an electronic compass, wherein the horizontal rotation cradle head is provided with a directional testing antenna, so that 360-degree automatic rotation in a horizontal direction can be realized, and a signal line of the multi-antenna selection switch is connected with a signal end of the main control circuit board through a slip ring; and a signal wire of the electronic compass is connected with a signal end of the main control circuit through a slip ring and is arranged on the outer part of the test equipment, and the electronic compass is used for determining the true north direction and acquiring the azimuth angle of an interference signal in the test process.
3. The integrated portable electromagnetic environment testing device of claim 1, further comprising a pitch motor and a horizontal motor, wherein a signal line of the pitch motor is connected to a signal terminal of the motor driving module through a slip ring, and a signal terminal of the horizontal motor is directly connected to a signal terminal of the motor driving module.
4. The integrated portable electromagnetic environment testing device of claim 1, further comprising a temperature and humidity sensor and an atmospheric pressure sensor, wherein the temperature and humidity sensor and the atmospheric pressure sensor are respectively connected to the main control circuit board, the temperature and humidity sensor is used for acquiring ambient temperature and ambient humidity, and the atmospheric pressure sensor is used for acquiring atmospheric pressure of an environment.
5. The integrated portable electromagnetic environment testing device of claim 1, wherein said display module comprises a display screen and a control keyboard, said display screen and said control keyboard are respectively connected to said main control circuit board through signal lines, said control keyboard comprises a radio frequency channel switching button, a horizontal orientation rotation button and a pitch angle adjustment button.
6. The integrated portable electromagnetic environment testing device of claim 1, wherein a power management module is further disposed on the main control circuit board, and the power management module is configured to manage the power supply module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710519012.9A CN107271792B (en) | 2017-06-30 | 2017-06-30 | Integrated portable electromagnetic environment testing equipment |
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| CN201710519012.9A CN107271792B (en) | 2017-06-30 | 2017-06-30 | Integrated portable electromagnetic environment testing equipment |
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| CN107271792A CN107271792A (en) | 2017-10-20 |
| CN107271792B true CN107271792B (en) | 2019-12-31 |
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| CN201710519012.9A Active CN107271792B (en) | 2017-06-30 | 2017-06-30 | Integrated portable electromagnetic environment testing equipment |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109540171B (en) * | 2018-12-05 | 2023-08-22 | 重庆嘉陵华光光电科技有限公司 | Portable autonomous positioning and directional servo system |
| CN112821967B (en) * | 2021-01-07 | 2022-08-16 | 同方电子科技有限公司 | Handheld wide-band electromagnetic environment monitoring device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0618582A (en) * | 1992-06-29 | 1994-01-25 | Nippon Telegr & Teleph Corp <Ntt> | Tracking and position measuring type radio-controlled electromagnetic environment measuring system |
| CN105242119A (en) * | 2015-09-09 | 2016-01-13 | 国网河南省电力公司电力科学研究院 | Electromagnetic environment monitoring system with noise integrated and method |
| CN205539210U (en) * | 2016-04-26 | 2016-08-31 | 福州博讯通电子有限公司 | Electromagnetic environment test system |
| CN205581153U (en) * | 2016-04-26 | 2016-09-14 | 福州博讯通电子有限公司 | Machine is consolidated in electromagnetic environment test |
| CN205958654U (en) * | 2016-08-30 | 2017-02-15 | 陕西特恩电子科技有限公司 | Electromagnetic environment test system |
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