CN206608168U - Wireless short pass equipment - Google Patents
Wireless short pass equipment Download PDFInfo
- Publication number
- CN206608168U CN206608168U CN201720161819.5U CN201720161819U CN206608168U CN 206608168 U CN206608168 U CN 206608168U CN 201720161819 U CN201720161819 U CN 201720161819U CN 206608168 U CN206608168 U CN 206608168U
- Authority
- CN
- China
- Prior art keywords
- short pass
- antenna
- wireless short
- pass equipment
- head
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model provides a kind of wireless short pass equipment, applied to the short haul connection in slurry environment, including head-shield, antenna, for the antenna holder of fixed antenna, radio frequency circuit board, base and shell.Wherein, radio frequency circuit board and antenna holder are individually fixed on base, are connected between radio frequency circuit board and antenna using coaxial cable, and antenna holder and base that shell parcel is connected with each other, head-shield are arranged at shell close to one end of antenna.Short pass equipment that this is wireless realizes the radio communication in slurry environment using wireless short pass equipment, easily cause that connecting line is pulled apart or rotary connector is not aligned with and then the problem of influence the smooth transmission of information because the relative position of equipment room changes when solving wireline connected device in the prior art, improve the reliability of data transfer.
Description
Technical field
The utility model is related to communication technical field, more particularly to a kind of wireless short pass equipment.
Background technology
Vertical brill in the course of the work, duplex communication is needed between guide head and MWD (measurement while drilling device), wherein, it is oriented to
Responsible well straightening, MWD is responsible for measuring external environment condition.At present, wired connection, such as hard link, soft are used between guide head and MWD
The modes such as connection, EEJ.But because guide head and MWD are on different threaded rods, in threaded rod installation process, two
The distance of person can change and in the presence of rotating against, and be easily caused that connecting line is pulled apart or rotary connector is not aligned with, can
See, use the mode of wired connection and unreliable.In addition, wired connection pattern is expensive, install complicated, therefore cost is very
It is high.
Utility model content
In view of the above problems, it is proposed that the utility model overcomes above mentioned problem to provide one kind or solved at least in part
The certainly wireless short pass equipment of above mentioned problem.
A kind of wireless short pass equipment, applied to the short haul connection in slurry environment, including:
Head-shield；
Antenna；
Antenna holder for fixing the antenna；
Radio frequency circuit board；
Base；
Shell；
Wherein, the radio frequency circuit board and the antenna holder are individually fixed on the base, the radio frequency circuit board
Connected between the antenna using coaxial cable, the antenna holder and the base that the shell parcel is connected with each other,
The head-shield is arranged at the shell close to one end of the antenna.
Alternatively, sealant is provided between the head-shield and the shell.
Alternatively, the sealant is at least two seals circle.
Alternatively, the head-shield is ceramic head-shield, and the shell and the base are made of metal.
Alternatively, the antenna is loop aerial.
Alternatively, the loop aerial embedding is in the antenna holder.
Alternatively, the base is provided with screwed hole, and the radio frequency circuit board and/or the antenna holder are solid by screw
Due on the base.
Alternatively, the one end of the shell away from the head-shield is provided with screw thread, and the screw thread, which is used to connect to have to hang down, bores work(
The external equipment of energy.
Alternatively, the external equipment includes guide head and measurement while drilling device, and the guide head is connected by screw one
The individual wireless short pass equipment, the measurement while drilling device is connected by screw another wireless short pass equipment, described to lead
To head and measurement while drilling device respectively by transmitting data between CAN and the wireless short pass equipment.
Alternatively, be connected to the guide head and the measurement while drilling device two wireless short pass equipment it
Between the nominal distance that carries out data transmission be no more than two meters.
The wireless short pass equipment that the utility model is provided at least has the advantages that：
The wireless short pass equipment that the utility model is provided, can be converted data to by the radio frequency circuit board built in it and penetrated
Frequency signal, and radiofrequency signal is transferred on the antenna in antenna holder by coaxial cable, and then be converted to electromagnetic wave, electromagnetism
Ripple enters mud through head-shield, and is transmitted in slurry environment to other equipment.Correspondingly, when other equipment passes through wireless short pass
During equipment transmission data, the data can also be received as the wireless short pass equipment of receiving terminal, and will connect using radio frequency circuit board
The data received are handled and transmitted to connected external equipment.It can be seen that, the wireless short pass that the utility model is provided is set
It is standby to realize the radio communication using wireless short pass equipment in slurry environment so that the information transfer no longer office in slurry environment
It is limited to wire transmission, is easily led when solving wireline connected device in the prior art because changing the relative position of equipment room
The problem of cause connecting line is pulled apart or rotary connector is not aligned with and then influences the smooth transmission of information, improves data biography
Defeated reliability.Secondly, the overall structure of wireless short pass equipment is easy for installation, it is easy to operate, reliable and stable, when because of use time
When length, head-shield serious wear, replacement head-shield can be also only dismantled without changing miscellaneous part, compared to wired company of the prior art
Connect for mode, the cost for short pass equipment that this is wireless is relatively low.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand skill of the present utility model
Art means, and being practiced according to the content of specification, and in order to allow above and other purpose of the present utility model, feature
It can be become apparent with advantage, below especially exemplified by embodiment of the present utility model.
According to the accompanying drawings to the detailed description of the utility model specific embodiment, those skilled in the art will be more
Plus understand of the present utility model above-mentioned and other purposes, advantages and features.
Brief description of the drawings
By reading the detailed description of hereafter preferred embodiment, various other advantages and benefit is common for this area
Technical staff will be clear understanding.Accompanying drawing is only used for showing the purpose of preferred embodiment, and is not considered as to this practicality
New limitation.And in whole accompanying drawing, identical part is denoted by the same reference numerals.In the accompanying drawings：
Fig. 1 is the schematic cross sectional view of the wireless short pass equipment according to the utility model one embodiment.
Embodiment
The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although showing the disclosure in accompanying drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
Limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
Complete conveys to those skilled in the art.
Fig. 1 is the schematic cross sectional view of the wireless short pass equipment according to the utility model one embodiment.As shown in figure 1,
Wireless short haul connection of the short pass equipment application in slurry environment, and including head-shield 1, antenna 3, the day for fixed antenna 3
Line bracket 4, radio frequency circuit board 5, base 6 and shell 7.Wherein, base 6 is provided with screwed hole, radio frequency circuit board 5 and antenna branch
Frame 4 is fixed on base 6 by screw respectively, is connected between radio frequency circuit board 5 and antenna 3 using coaxial cable, and shell 7 is wrapped up
The antenna holder 4 and base 6 of interconnection, head-shield 1 are arranged at shell 7 close to one end of antenna 3.
Optionally, sealant 2 (as shown in Figure 1) can be provided between head-shield 1 and shell 7, the sealant 2 can avoid wireless short
When passing equipment and being in slurry environment, impurity or moisture in mud enter wireless short pass equipment cause its internal antenna 3 and
Radio frequency circuit board 5 is damaged.To improve sealing effectiveness, at least two seals circle can be used to be placed directly in before shell 7 for sealant 2
End, and then head-shield 1 is being installed foremost.
Optionally, head-shield 1 is ceramic head-shield 1, and shell 7 is made up, base 6 and radio circuit of metal (being preferably beryllium-bronze)
Plate 5 is also each made of a metal.So, except one end where ceramic head-shield 1, other end faces of wireless short pass equipment are by shell
7 parcels so that it is ceramic environment to only have an end face in the environment of antenna 3, and other end faces are metal environment, so that antenna
3 electromagnetic waves sent can penetrate ceramic environment and realize transmission.In addition, ceramic head-shield 1 can also resist mud to wireless short pass
Equipment is washed away, therefore not only protects the wireless short pass equipment in slurry environment, and does not influence the transmission of electromagnetic wave.
Antenna 3 shown in Fig. 1 is loop aerial 3, and the loop aerial 3 is by embedding in antenna holder 4.Antenna holder 4
Can fixed-loop aerial 3 in the position of the central shaft close to shell 7, it is to avoid cause loop aerial 3 to collide when producing vibrations outer
Shell 7 or the situation of position skew.Loop aerial 3 can use the printed antenna of FR4 media version.Antenna holder 4 can use PEEK
(polyetheretherketone, polyether-ether-ketone) material, advantage is the dielectric constant of the antenna holder 4 using PEEK materials
It is all very low with dielectric loss.Because ordinary antennas by medium emission of air and can only receive electromagnetic wave on the ground, and generally
Volume is larger, and temperature is higher in slurry environment, and electromagnetic environment is more complicated, if ordinary antennas is used in slurry environment,
The most of electromagnetic wave that only can launch ordinary antennas is reflected by mud and metal shell, causes electric energy to be converted into
Heat energy is wasted.Therefore, the antenna in wireless short pass equipment is set to loop aerial by the present embodiment, and passes through antenna
Support 4 is fixed in narrow and small metal shell 7, can not only adapt to slurry environment, is realized in slurry environment to electromagnetic wave
Transmitting and reception, and the small volume taken, it is more convenient to use.
In the present embodiment, the polarization mode of loop aerial 3 is circular polarisation.Circular polarisation point left-hand circular polarization and dextrorotation entelechy
Change, and it is vertical to overturn 180 degree for circular polarisation, i.e., reformed into right-handed circular polarization after left-hand circular polarization upset 180 degree.By
In the polarization mode of dual-mode antenna it is different (such as one be left-hand circular polarization, another be right-handed circular polarization) when, signal can be caused
Huge decay, therefore, in actual applications, preferably used in wireless short pass equipment and be in 90 degree of loop aerial 3 for a pair,
So, even if the Research of Antenna Polarization of one of loop aerial 3 and recipient are just vertical (180 degree), it still is able to true
Another loop aerial 3 is protected identical with the Research of Antenna Polarization of recipient, so as to ensure the transmission quality of electromagnetic wave.
Further, since mud resistivity is low, meeting electromagnetic wave absorption, and generally wave frequency is lower, it is in mud
Decay in slurry is smaller, therefore to ensure that communication quality must use the electromagnetic wave of low frequency, correspondingly, uses the electromagnetic wave of low frequency
So that the length of loop aerial 3 should be longer.It is preferred that, the length of loop aerial 3 is generally the integral multiple of half-wavelength, by mirror image
It is quarter-wave that effect is most short.Furthermore, it is contemplated that the standing wave of small space internal antenna, when the length of loop aerial 3 is longer
When, its standing-wave ratio in slurry environment is more undesirable.Therefore in actual applications, not the longer the better for loop aerial 3, true
During the length of annular antenna 3, attenuation degree and small space internal antenna of the electromagnetic wave in slurry environment should be considered
Two factors of standing wave.
In addition, the rear end (one end i.e. away from ceramic head-shield 1) of shell 7 is provided with screw thread, function is bored for connecting to have to hang down
External equipment.The radio frequency chip that radio frequency circuit board 5 is used is existing chip, such as PIC18F46K80 chips, SX1276 chips
It is prior art Deng, its operation principle, therefore repeats no more.
Optionally, external equipment includes guide head and measurement while drilling device, and guide head is connected by screw one wireless short
Equipment is passed, measurement while drilling device is connected by screw another wireless short pass equipment, and guide head and measurement while drilling device lead to respectively
Cross between CAN and wireless short pass equipment and transmit data.
Optionally, it is connected to progress data biography between guide head and two wireless short pass equipment of measurement while drilling device
Defeated nominal distance is no more than two meters.The reason for setting nominal distance, is, when transmitting electromagnetic wave in slurry environment, due to mud
The electric conductivity and high-k of slurry cause electromagnetic wave to have very big decay in mud, therefore are easily led when in larger distance
Cause the electromagnetic wave sent can not penetrate the head-shield that mud reaches receiving terminal, it is impossible to ensure communication quality.Further, actually make
The best direction of two head-shields 1 of used time, the wireless short pass equipment as transmitting terminal and the wireless short pass equipment as receiving terminal is straight
Connect and face, and apart from half meter when laser propagation effect it is optimal.
, need to be each when carrying out the radio communication in slurry environment using wireless short pass equipment from above-described embodiment
A wireless short pass equipment is all connected on external equipment.For example, wireless short pass equipment application is led when during oil drilling works
Need to connect a wireless short pass equipment respectively on to head and measurement while drilling device, in specific connection, the mud of guide head generates electricity
The upper end of machine is directly screwed in by screw on the shell of wireless short pass equipment, and the lower end of measurement while drilling device is direct also by screw
On the shell 7 for being screwed in wireless short pass equipment.In addition, guide head and measurement while drilling device are also needed by power line and data wire and nothing
Line short pass communication between devices, specifically, being powered using 12V to 40V dc sources, and transmit data using CAN.One
In individual embodiment, also using SCI interface transmission datas.
Illustrate the application for the wireless short pass equipment that the utility model is provided below by way of specific embodiment.
By taking oil drilling tool as an example, including guide head and measurement while drilling device MWD, wherein, guide head is transmitting terminal, with
It is receiving terminal to bore measurement apparatus MWD.The upper end of the slurry generator of guide head is directly screwed in wireless short pass equipment by screw
On shell 7, measurement while drilling device MWD lower end is directly screwed in also by screw on the shell 7 of wireless short pass equipment.Guide head and
Measurement while drilling device MWD is also needed by power line and data wire and wireless short pass communication between devices, specifically, using 12V extremely
40V dc sources are powered, and transmit data using CAN.In drilling process, the ceramic head-shield 1 of two wireless short pass equipment
Direction is just right, and apart from half meter.
After the data that guide head is sent are transferred to radio frequency circuit board 5 through CAN, the single-chip microcomputer of radio frequency circuit board 5 is by number
According to subpackage, addition check bit (such as CRC check position), interweave processing, and is changed each frame data using linear frequency modulation technology
For radiofrequency signal.Advantage using linear frequency modulation technology change data is：Linear frequency modulation technology be widely used in radar and
In sonar detection, with stronger penetration power and higher detection sensitivity.Radiofrequency signal is transferred to ring by coaxial cable
On shape antenna 3, electromagnetic wave is then converted into, electromagnetic wave penetrates sealant 2, ceramic head-shield 1 and enters mud successively.Electromagnetic wave is worn
The ceramic head-shield 1 for the wireless short pass equipment that saturating mud incidence is connected with measurement while drilling device MWD, and ceramic head-shield 1 is penetrated successively
Received with sealant 2 by loop aerial 3, be finally demodulated by the single-chip microcomputer of radio frequency circuit board 5, verify whether no error code etc.
Reason, and will verify that errorless data are transmitted to measurement while drilling device MWD by CAN.If there is error code in checking, by number
According to discarding.
The wireless short pass equipment that the utility model is provided, can be converted data to by the radio frequency circuit board built in it and penetrated
Frequency signal, and radiofrequency signal is transferred on the antenna in antenna holder by coaxial cable, and then be converted to electromagnetic wave, electromagnetism
Ripple enters mud through head-shield, and is transmitted in slurry environment to other equipment.Correspondingly, when other equipment passes through wireless short pass
During equipment transmission data, the data can also be received as the wireless short pass equipment of receiving terminal, and will connect using radio frequency circuit board
The data received are handled and transmitted to connected external equipment.It can be seen that, the wireless short pass that the utility model is provided is set
It is standby to realize the radio communication using wireless short pass equipment in slurry environment so that the information transfer no longer office in slurry environment
It is limited to wire transmission, is easily led when solving wireline connected device in the prior art because changing the relative position of equipment room
The problem of cause connecting line is pulled apart or rotary connector is not aligned with and then influences the smooth transmission of information, improves data biography
Defeated reliability.Secondly, the overall structure of wireless short pass equipment is easy for installation, it is easy to operate, reliable and stable, when because of use time
When length, head-shield serious wear, replacement head-shield can be also only dismantled without changing miscellaneous part, compared to wired company of the prior art
Connect for mode, the cost for short pass equipment that this is wireless is relatively low.
In the specification that this place is provided, numerous specific details are set forth.It is to be appreciated, however, that of the present utility model
Embodiment can be put into practice in the case of these no details.In some instances, be not been shown in detail known method,
Structure and technology, so as not to obscure the understanding of this description.
Similarly, it will be appreciated that in order to simplify the disclosure and help to understand one or many in each utility model aspect
It is individual, above in the description of exemplary embodiment of the present utility model, each feature of the present utility model is divided together sometimes
Group is into single embodiment, figure or descriptions thereof.However, the method for the disclosure should be construed to reflect following meaning
Figure：The utility model i.e. claimed requires features more more than the feature being expressly recited in each claim.
More precisely, as the following claims reflect, it is in terms of utility model single less than disclosed above
All features of embodiment.Therefore, it then follows thus claims of embodiment are expressly incorporated in the specific embodiment party
Formula, wherein each claim is in itself as separate embodiments of the present utility model.
Although in addition, it will be appreciated by those of skill in the art that some embodiments described herein include other embodiments
In included some features rather than further feature, but the combination of the feature of be the same as Example does not mean in this practicality newly
Within the scope of type and form different embodiments.For example, in detail in the claims, embodiment claimed it is any
One of mode can use in any combination.
So far, although those skilled in the art will appreciate that herein it is detailed have shown and described it is of the present utility model many
Individual exemplary embodiment, still, still can be public according to the utility model in the case where not departing from the utility model spirit and scope
The content opened directly determines or derived many other variations or modifications for meeting the utility model principle.Therefore, this practicality is new
The scope of type is understood that and regarded as to cover other all these variations or modifications.
Claims (10)
1. a kind of wireless short pass equipment, applied to the short haul connection in slurry environment, it is characterised in that including:
Head-shield；
Antenna；
Antenna holder for fixing the antenna；
Radio frequency circuit board；
Base；
Shell；
Wherein, the radio frequency circuit board and the antenna holder are individually fixed on the base, the radio frequency circuit board and institute
The antenna holder and the base being connected with each other between antenna using coaxial cable connection, the shell parcel are stated, it is described
Head-shield is arranged at the shell close to one end of the antenna.
2. wireless short pass equipment according to claim 1, it is characterised in that provided with close between the head-shield and the shell
Sealing.
3. wireless short pass equipment according to claim 2, it is characterised in that the sealant is at least two seals circle.
4. wireless short pass equipment according to claim 1, it is characterised in that the head-shield is ceramic head-shield, the shell
It is made of metal with the base.
5. wireless short pass equipment according to claim 1, it is characterised in that the antenna is loop aerial.
6. wireless short pass equipment according to claim 5, it is characterised in that the loop aerial embedding is in the antenna branch
In frame.
7. wireless short pass equipment according to claim 1, it is characterised in that the base is provided with screwed hole, described to penetrate
Frequency circuit plate and/or the antenna holder are fixed on the base by screw.
8. wireless short pass equipment according to claim 1, it is characterised in that the one end of the shell away from the head-shield is set
There is screw thread, the screw thread is used to connect the external equipment for boring function with hanging down.
9. wireless short pass equipment according to claim 8, it is characterised in that the external equipment includes guide head and with brill
Measurement apparatus, the guide head is connected by screw the wireless short pass equipment, and the measurement while drilling device passes through screw
Connect another wireless short pass equipment, the guide head and measurement while drilling device respectively by CAN with it is described wireless
Data are transmitted between short pass equipment.
10. wireless short pass equipment according to claim 9, it is characterised in that be connected to the guide head and described
The nominal distance carried out data transmission between two wireless short pass equipment of measurement while drilling device is no more than two meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720161819.5U CN206608168U (en) | 2017-02-22 | 2017-02-22 | Wireless short pass equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720161819.5U CN206608168U (en) | 2017-02-22 | 2017-02-22 | Wireless short pass equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206608168U true CN206608168U (en) | 2017-11-03 |
Family
ID=60169238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720161819.5U Expired - Fee Related CN206608168U (en) | 2017-02-22 | 2017-02-22 | Wireless short pass equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206608168U (en) |
-
2017
- 2017-02-22 CN CN201720161819.5U patent/CN206608168U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1022196C (en) | Method of conveying data in whole mine | |
| US8354939B2 (en) | Wellbore casing mounted device for determination of fracture geometry and method for using same | |
| US20080007421A1 (en) | Measurement-while-drilling (mwd) telemetry by wireless mems radio units | |
| CA3055546C (en) | Wireless communication between downhole components and surface systems | |
| MX2009000112A (en) | Modular geosteering tool assembly. | |
| CA2621496A1 (en) | Method and apparatus for transmitting sensor response data and power through a mud motor | |
| MX2010010963A (en) | Method and system of transmitting electromagnetic waves from a wellbore. | |
| CN105869372B (en) | A kind of underground mineral products detector with video acquisition unit | |
| CN106876866A (en) | Insulation plug with RFID label tag | |
| CN206608168U (en) | Wireless short pass equipment | |
| US8660595B2 (en) | Communication arrangement for transmission of communication signals along a pipe line | |
| WO2017181980A1 (en) | Underground mineral detector | |
| CN105759320B (en) | A kind of underground mineral products detector provided with magnetic field intensity detector | |
| CN107293853A (en) | A kind of dual polarized antenna | |
| US11486918B2 (en) | Fixture for a device under test | |
| CN108278108A (en) | A kind of nearly drill bit in underground is wireless short pass system and its working method | |
| CN106785362A (en) | A kind of antenna and its application for array antenna monitoring | |
| CN105785474A (en) | Underground mineral detector | |
| CN206585057U (en) | Insulation plug with RFID tag | |
| CN105807337B (en) | A kind of storable underground mineral products detector of information | |
| CN205335419U (en) | A near field antenna for RFID system | |
| CN105758453A (en) | Downhole environment and life detector | |
| CN217589432U (en) | Embedded antenna is put to annular | |
| US11927090B2 (en) | Horizontal directional drilling system and method | |
| CN105756710A (en) | Positioning monitor for underground coal mine environment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171103 Termination date: 20190222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |