CN107809636A - Terrestrial DTV on-road emission test instrument - Google Patents
Terrestrial DTV on-road emission test instrument Download PDFInfo
- Publication number
- CN107809636A CN107809636A CN201711238557.9A CN201711238557A CN107809636A CN 107809636 A CN107809636 A CN 107809636A CN 201711238557 A CN201711238557 A CN 201711238557A CN 107809636 A CN107809636 A CN 107809636A
- Authority
- CN
- China
- Prior art keywords
- tester
- indicator lamp
- test instrument
- terrestrial dtv
- signal
- 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.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 32
- 238000012545 processing Methods 0.000 claims description 22
- 238000005259 measurement Methods 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 4
- 241001122767 Theaceae Species 0.000 abstract description 3
- 230000006399 behavior Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/004—Diagnosis, testing or measuring for television systems or their details for digital television systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
Landscapes
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Radar, Positioning & Navigation (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- General Health & Medical Sciences (AREA)
- Quality & Reliability (AREA)
- Electromagnetism (AREA)
- Multimedia (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- General Physics & Mathematics (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The invention discloses a kind of terrestrial DTV on-road emission test instrument, it is related to tester technical field.Including tester body；Tester body is a cylinder, and all sides of tester body are made up of a cambered surface and a plane；The first indicator lamp, the second indicator lamp and the 3rd indicator lamp are provided with side by side above plane；A display unit is provided among plane；Display unit lower section is provided with and control panel；Tester body upper surface is provided with leader and a data line interface；The ground of tester body is provided with a power interface.The present invention is convenient that tester is placed in vehicle tea cup holder by the way that tester shell is arranged into cylinder, is convenient for carrying；And by setting handle, facilitate operator to carry, tester running situation is indicated by setting signal indicator lamp, facilitates operator to observe tester test case in vehicle travel process.
Description
Technical field
The invention belongs to tester technical field, more particularly to terrestrial DTV on-road emission test instrument.
Background technology
Terrestrial DTV is one kind of digital television techniques, i.e., the terrestrial DTV sent by receiving television tower is believed
Number, TV reception.For television set aspect, it is necessary to possess ground digital television signal receiving ability, if old-fashioned mould
Intend TV, can also be received by special set top box, be then converted into analog signal and be connected on television set.
The appearance of terrestrial DTV tester provides strong help to the quality of terrestrial DTV, but mesh
There is many weak points in the terrestrial DTV tester of last stage, such as inconvenient to carry；A kind of currently designed ground number
The vehicle-mounted tester of word TV, it is convenient that tester is placed on vehicle by being arranged to the shell of cylinder, and by setting handle
Hand, carried when conveniently getting off.
The content of the invention
It is an object of the invention to provide a kind of terrestrial DTV on-road emission test instrument, by the way that tester shell is arranged to
Cylinder, it is convenient that tester is placed in vehicle tea cup holder, it is convenient for carrying；And by setting handle, facilitate operator to carry,
Tester running situation is indicated by setting signal indicator lamp, facilitates operator to observe tester test in vehicle travel process
Situation.
In order to solve the above technical problems, the present invention is achieved by the following technical solutions：
The present invention is terrestrial DTV on-road emission test instrument, including：Tester body；The tester body is a post
Body, all sides of the tester body are made up of a cambered surface and a plane；Be provided with side by side above the plane the first indicator lamp,
Second indicator lamp and the 3rd indicator lamp；A display unit is provided among the plane；It is provided with and control below the display unit
Panel；The tester body upper surface is provided with leader and a data line interface；The ground of the tester body is provided with one
Power interface.
Further, the handle is an arc strip post, and the cross section of the handle is circle.
Further, first indicator lamp is used to indicate whether tester is working；Second indicator lamp is used to refer to
Show whether detect ground digital television signal；3rd indicator lamp is used to indicate power supply；After tester is opened, described
One indicator lamp lights；After closing tester, first indicator lamp extinguishes；It is described when detecting ground digital television signal
Second indicator lamp lights, and when can't detect ground digital television signal, second indicator lamp extinguishes；When tester electricity is low
When 10, the 3rd indicator lamp lights.
Further, the display unit is high definition LED display.
Terrestrial DTV on-road emission test instrument test system, including：Reception antenna, central processing unit, d GPS locating module,
Tuner, demodulator, channel parameter identification module, channel power measurement module, memory cell；The control panel and centre
Manage device connection；The central processing unit is connected the reception antenna with display unit and receives digital television signal, is transferred to tune
Humorous device is tuned, and the tuner converts the signal into intermediate-freuqncy signal, and the tuner transmits intermediate-freuqncy signal to demodulator
It is demodulated；Signal after demodulation is transmitted to Vehicular video playback equipment and carried out by the central processing unit by data line interface
Play；The central processing unit is connected with a channel parameter identification module and a channel power measurement module；The central processing
Device is connected with a memory cell；D GPS locating module is connected with central processing unit；The central processing unit connects with signal lamp
Connect.
Further, the d GPS locating module is used for the positional information of position testers.
Further, the memory cell be used to storing the location information of d GPS locating module, channel parameter identification module and
The information of channel power measurement module measurement.
Further, the signal of the tuner output passes through A/D converter, converts analog signals into digital letter
Number, the demodulator is demodulated after receiving data signal.
Further, the display unit is used to show power information, channel parameter information, channel power information, GPS positions
Confidence ceases.
The invention has the advantages that：
1st, the present invention is convenient that tester is placed in vehicle tea cup holder by the way that tester shell is arranged into cylinder,
It is convenient for carrying；And by setting handle, facilitate operator to carry, tester running situation is indicated by setting signal indicator lamp,
Operator is facilitated to observe tester test case in vehicle travel process.
2nd, decoded digital television signal is transmitted to Vehicular video playback equipment by the present invention by data line interface
Row plays, being capable of real time detection signal quality.
3rd, the present invention is by setting the positional informations of the real-time position testers of d GPS locating module, by by signal parameter with
Location information is combined with each other, the strong and weak distribution situation of record digital TV signals.
Certainly, any product for implementing the present invention it is not absolutely required to reach all the above advantage simultaneously.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, used required for being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for ability
For the those of ordinary skill of domain, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other attached
Figure.
Fig. 1 is the structural representation of terrestrial DTV on-road emission test instrument proposed by the present invention；
Fig. 2 looks up angle structural representation for terrestrial DTV on-road emission test instrument proposed by the present invention；
Fig. 3 is the structure front view of terrestrial DTV on-road emission test instrument proposed by the present invention；
Fig. 4 is the system block diagram of the control system of terrestrial DTV on-road emission test instrument proposed by the present invention；
In accompanying drawing, the list of parts representated by each label is as follows：
1- device bodies, 101- planes, 102- display units, 103- control panels, the indicator lamps of 104- first, 105- second
Indicator lamp, the indicator lamps of 106- the 3rd, 107- handles, 108- data line interfaces, 109- power interfaces.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained all other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
In the description of the invention, it is to be understood that term " perforate ", " on ", " under ", " thickness ", " top ", " in ",
Indicating position or the position relationship such as " length ", " interior ", " surrounding ", it is for only for ease of the description present invention and simplifies description, without
It is that the component of instruction or hint meaning or element must have specific orientation, with specific azimuth configuration and operation, therefore not
It is understood that as limitation of the present invention.
Referring to shown in Fig. 1-3, the present invention is a kind of terrestrial DTV on-road emission test instrument, including：Tester body 1；
Tester body 1 is a cylinder, and all sides of tester body 1 are made up of a cambered surface and a plane 101；The top of plane 101 is simultaneously
Row is provided with the first indicator lamp 104, the second indicator lamp 105 and the 3rd indicator lamp 106；A display unit is provided among plane 101
102；The lower section of display unit 102 is provided with and control panel 103；Control panel 103 includes power key, Menu key and numerical key；Behaviour
Author controls tester to work by control panel 103；The upper surface of tester body 1 connects provided with the data wire of leader 107 and one
Mouth 108；The ground of tester body 1 is provided with a power interface 109.
Wherein, handle 107 is an arc strip post, and the cross section of handle 107 is circle.
Wherein, the first indicator lamp 104 is used to indicate whether tester is working；Second indicator lamp 105 is used to indicate whether
Detect ground digital television signal；3rd indicator lamp 106 is used to indicate power supply；After tester is opened, the first indicator lamp 104
Light；After closing tester, the first indicator lamp 104 extinguishes；When detecting ground digital television signal, the second indicator lamp 105
Light, when can't detect ground digital television signal, the second indicator lamp 105 extinguishes；When tester electricity is less than 10
When, the 3rd indicator lamp 106 lights.
Wherein, display unit is high definition LED display.
Wherein as shown in figure 4, terrestrial DTV on-road emission test instrument test system, including：Reception antenna, central processing
Device, d GPS locating module, tuner, demodulator, channel parameter identification module, channel power measurement module, memory cell；Control
Panel is connected with central processing unit；Central processing unit is connected reception antenna with display unit and receives digital television signal, transmission
It is tuned to tuner, tuner converts the signal into intermediate-freuqncy signal, and intermediate-freuqncy signal is transmitted to demodulator and carried out by tuner
Demodulation；Signal after demodulation is transmitted to Vehicular video playback equipment and played out by central processing unit by data line interface；In
Central processor is connected with a channel parameter identification module and a channel power measurement module；Central processing unit and a memory cell connect
Connect；D GPS locating module is connected with central processing unit；Central processing unit is connected with signal lamp.
Wherein, d GPS locating module is used for the positional information of position testers.
Wherein, memory cell is used for location information, channel parameter identification module and the channel power for storing d GPS locating module
The information of measurement module measurement.
Wherein, the signal of tuner output passes through A/D converter, converts analog signals into data signal, demodulator
It is demodulated after receiving data signal.
Wherein, display unit is used to show power information, channel parameter information, channel power information, GPS position information.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
At least one implementation of the present invention is contained in reference to specific features, structure, material or the feature that the embodiment or example describe
In example or example.In this manual, identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.
Moreover, specific features, structure, material or the feature of description can close in any one or more embodiments or example
Suitable mode combines.
Present invention disclosed above preferred embodiment is only intended to help and illustrates the present invention.Preferred embodiment is not detailed
All details are described, it is only described embodiment also not limit the invention.Obviously, according to the content of this specification,
It can make many modifications and variations.This specification is chosen and specifically describes these embodiments, is to preferably explain the present invention
Principle and practical application so that skilled artisan can be best understood by and utilize the present invention.The present invention is only
Limited by claims and its four corner and equivalent.
Claims (9)
1. terrestrial DTV on-road emission test instrument, it is characterised in that including：Tester body (1)；The tester body (1)
For a cylinder, all sides of the tester body (1) are made up of a cambered surface and a plane (101)；Above the plane (101)
The first indicator lamp (104), the second indicator lamp (105) and the 3rd indicator lamp (106) are provided with side by side；Set among the plane (101)
There is a display unit (102)；It is provided with and control panel (103) below the display unit (102)；
The surface of tester body (1) one is provided with leader (107) and a data line interface (108)；
The bottom surface of the tester body (1) is provided with a power interface (109).
2. terrestrial DTV on-road emission test instrument according to claim 1, it is characterised in that the handle (107) is one
Arc strip post, the cross section of the handle (107) is circle.
3. terrestrial DTV on-road emission test instrument according to claim 1, it is characterised in that first indicator lamp
(104) it is used to indicate whether tester is working；Second indicator lamp (105) is used to indicate whether to detect ground digital electricity
Depending on signal；3rd indicator lamp (106) is used to indicate power supply.
4. terrestrial DTV on-road emission test instrument according to claim 1, it is characterised in that the display unit is high definition
LED display.
5. the terrestrial DTV on-road emission test instrument test system as described in claim 1-4 is any one, it is characterised in that bag
Include：Reception antenna, central processing unit, d GPS locating module, tuner, demodulator, channel parameter identification module, channel power are surveyed
Measure module, memory cell；
The control panel is connected with central processing unit；The central processing unit is connected with display unit
The reception antenna receives digital television signal, is transferred to tuner and is tuned, and the tuner changes signal
Into intermediate-freuqncy signal, the tuner, which transmits intermediate-freuqncy signal to demodulator, to be demodulated；The central processing unit passes through data wire
Signal after demodulation is transmitted to Vehicular video playback equipment and played out by interface；
The central processing unit is connected with a channel parameter identification module and a channel power measurement module；The central processing unit
It is connected with a memory cell；D GPS locating module is connected with central processing unit；
The central processing unit is connected with signal lamp.
6. terrestrial DTV on-road emission test instrument test system according to claim 5, it is characterised in that the GPS determines
Position module is used for the positional information of position testers.
7. terrestrial DTV on-road emission test instrument test system according to claim 5, it is characterised in that the storage is single
Member is used for the information for storing the location information of d GPS locating module, channel parameter identification module and the measurement of channel power measurement module.
8. terrestrial DTV on-road emission test instrument test system according to claim 5, it is characterised in that the tuner
The signal of output passes through A/D converter, converts analog signals into data signal.
9. terrestrial DTV on-road emission test instrument test system according to claim 5, it is characterised in that the display is single
Member is used to show power information, channel parameter information, channel power information, GPS position information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711238557.9A CN107809636A (en) | 2017-11-30 | 2017-11-30 | Terrestrial DTV on-road emission test instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711238557.9A CN107809636A (en) | 2017-11-30 | 2017-11-30 | Terrestrial DTV on-road emission test instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107809636A true CN107809636A (en) | 2018-03-16 |
Family
ID=61582315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711238557.9A Pending CN107809636A (en) | 2017-11-30 | 2017-11-30 | Terrestrial DTV on-road emission test instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107809636A (en) |
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|---|---|---|---|---|
| CN2333012Y (en) * | 1997-09-19 | 1999-08-11 | 山西雏龙电子有限公司 | Hand-held field strength meter |
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| CN104881046A (en) * | 2014-11-06 | 2015-09-02 | 珠海佳讯赛特电子有限公司 | Debugging technology detector for digital satellite signal and ground wave antennas |
| CN205545721U (en) * | 2016-04-26 | 2016-08-31 | 张丽敏 | Handheld terrestrial digital spectral analysis tester |
| CN106224289A (en) * | 2016-07-28 | 2016-12-14 | 韦义乐 | A kind of intelligent vehicle-carried fan with temperature detecting module |
| CN207530979U (en) * | 2017-11-30 | 2018-06-22 | 安徽汇鑫电子有限公司 | Terrestrial DTV on-road emission test instrument |
-
2017
- 2017-11-30 CN CN201711238557.9A patent/CN107809636A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2333012Y (en) * | 1997-09-19 | 1999-08-11 | 山西雏龙电子有限公司 | Hand-held field strength meter |
| CN101340601A (en) * | 2008-08-15 | 2009-01-07 | 北京航空航天大学 | Measurement receiver for digital television |
| CN102223566A (en) * | 2010-04-16 | 2011-10-19 | 北京广电天地信息咨询有限公司 | Testing method and system for network coverage of ground broadcast network of digital television |
| CN102645590A (en) * | 2011-02-18 | 2012-08-22 | 北京国广电科技有限公司 | Intelligent global positioning system (GPS) vehicle-mounted mobile field intensity indicator |
| CN202649316U (en) * | 2012-06-21 | 2013-01-02 | 北京二十一世纪科技发展有限公司 | Field intensity indicator |
| CN103841414A (en) * | 2014-03-18 | 2014-06-04 | 珠海迈科电子科技有限公司 | Portable multifunctional signal measuring instrument for digital broadcasting television |
| CN104881046A (en) * | 2014-11-06 | 2015-09-02 | 珠海佳讯赛特电子有限公司 | Debugging technology detector for digital satellite signal and ground wave antennas |
| CN205545721U (en) * | 2016-04-26 | 2016-08-31 | 张丽敏 | Handheld terrestrial digital spectral analysis tester |
| CN106224289A (en) * | 2016-07-28 | 2016-12-14 | 韦义乐 | A kind of intelligent vehicle-carried fan with temperature detecting module |
| CN207530979U (en) * | 2017-11-30 | 2018-06-22 | 安徽汇鑫电子有限公司 | Terrestrial DTV on-road emission test instrument |
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