CN102680844A - Antenna connection status detection device and detection method thereof - Google Patents

Antenna connection status detection device and detection method thereof Download PDF

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Publication number
CN102680844A
CN102680844A CN2011100667327A CN201110066732A CN102680844A CN 102680844 A CN102680844 A CN 102680844A CN 2011100667327 A CN2011100667327 A CN 2011100667327A CN 201110066732 A CN201110066732 A CN 201110066732A CN 102680844 A CN102680844 A CN 102680844A
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connection status
antenna
voltage
unit
module
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CN2011100667327A
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王正宁
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Shanghai Sunrise Simcom Electronic Technology Co Ltd
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Shanghai Sunrise Simcom Electronic Technology Co Ltd
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Abstract

The invention discloses an antenna connection status detection device and a method thereof. The antenna connection status detection device comprises a voltage detection module and a connection state judgment module, wherein the voltage detection module is used for presetting a voltage detection time interval and detecting the voltage on the antenna unit according to the voltage detection time interval; and the connection state judgment module is used for presetting the corresponding relation between voltage and connection state and judging the connection state of the antenna unit according to the detected voltage and the corresponding relation. With the antenna connection status detection device and the detection method thereof, the state of an antenna is judged by detecting the voltage of the antenna, the compatibility with various antennas is realized by customizing the antenna state by a user, more specific antenna state information can be provided, so that convenience is provided for antenna detection for the user, and the antenna detection efficiency is increased.

Description

Connection status of antenna pick-up unit and detection method thereof
Technical field
The present invention relates to a kind of connection status of antenna pick-up unit and detection method thereof, particularly relate to a kind of connection status of antenna pick-up unit and detection method thereof of wireless telecommunications system.
Background technology
Present wireless device generally uses external antenna to realize the communication function of wireless device.If so in normal communication, run into the situation that communication has received influence; The user can not call and send short messages and during some other normal communications activity relevant with network communication; Possibly not be the reason of network-side, might be that connection status of antenna is wrong in the wireless device causes, and for example under some environment, making moist causes ground connection; Perhaps aerial head unclamps, and the communications that reason caused such as overvoltage can not.
Whether insert in order to detect external antenna, in existing wireless device, also be provided with proprietary antenna detection circuit.Can only detect two states but this type circuit is defined by in design: first state can be thought high level state; This moment, external antenna was not connected with wireless device; Second state then can be thought low level state, and this moment, external antenna was connected with wireless device.So the antenna condition of part can only be provided, be unwell to further antenna detection, thereby, can not satisfy market multi-functional requirement of antenna detection circuit and needs along with client's growth of requirement.
Summary of the invention
The technical matters that the present invention will solve is in order to overcome the simple defective of antenna detection function in the prior art, a kind of connection status of antenna pick-up unit and detection method thereof to be provided, can gather multiple antenna condition, thereby provides convenience for user's antenna detection.
The present invention solves above-mentioned technical matters through following technical proposals:
A kind of connection status of antenna pick-up unit comprises an antenna element, and its characteristics are that said connection status of antenna pick-up unit also comprises:
One voltage detection module is used for predeterminated voltage detection time detecting the voltage on the said antenna element at interval and according to the said voltage detecting time interval;
One connection status judge module is used for the mapping table of predeterminated voltage and connection status and the connection status of judging said antenna element according to the voltage and the said mapping table of detection.
Preferably, said connection status judge module also is used for sending to external unit the connection status of said antenna element.
Preferably; Said voltage detection module comprises a power end, an analog to digital converter, one first resistance, one second resistance and one the 3rd resistance; Wherein said analog to digital converter is electrically connected with said antenna element through first resistance; Said power end is electrically connected with external power source and is electrically connected with said antenna element through second resistance, second resistance that said power end also passes through to connect and the 3rd resistance be electrically connected.
Preferably, said antenna element comprises an antenna and a matching module, and said matching module is used to stablize the wireless signal of said antenna input.
Preferably, said matching module comprises an electric capacity and an inductance, and said electric capacity is electrically connected with external unit, and said inductance is electrically connected with said voltage detection module.
Preferably, the said voltage detecting time interval more than or equal to 1 second smaller or equal to 3600 seconds.
A kind of connection status of antenna detection method of described connection status of antenna pick-up unit, its characteristics are that said connection status of antenna detection method may further comprise the steps:
S 101, user's setting voltage detection module the voltage detecting time interval and the voltage of connection status module and the mapping table of connection status;
S 102, voltage detection module waiting for voltage detecting after the time interval, detects the voltage of antenna element;
S 103, the connection status judge module reads the testing result of voltage detection module, and judges the connection status of said antenna element according to the mapping table of said voltage and connection status.
Preferably, saidly connect the connection status that condition judgment module also is used for sending to external unit said antenna element, and at step S 103The back is further comprising the steps of:
Said connection status judge module is sent to external unit with the connection status of the antenna element of judging.
Positive progressive effect of the present invention is:
Connection status of antenna pick-up unit of the present invention and detection method thereof are judged the state of antenna through the voltage that detects antenna; And can be through user self-defined to antenna condition; Realized compatibility with multiple antenna; And more detailed antenna condition information can be provided, thus provide convenience for user's antenna detection, improved the efficient of antenna detection.
Description of drawings
Fig. 1 is the circuit structure block diagram of first embodiment of connection status of antenna pick-up unit of the present invention.
Fig. 2 is the circuit structure block diagram of second embodiment of connection status of antenna pick-up unit of the present invention.
Fig. 3 is the process flow diagram of the preferred embodiment of connection status of antenna detection method of the present invention.
Embodiment
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to specify technical scheme of the present invention.
First embodiment:
Shown in Figure 1 is the circuit structure block diagram of connection status of antenna pick-up unit, comprising an antenna element 1, a voltage detection module 2, a connection status judge module 3 and a wireless communication unit 4.
Wherein said antenna element comprises an antenna 11 and a matching module 12.
Antenna described in the present embodiment 11 be used to receive wireless signal and stablize through matching module 12 after be sent to said wireless communication unit 4.Wherein said antenna 11 is the antenna in the existing wireless communications equipment, also can adopt other forms of antenna according to the actual needs of Wireless Telecom Equipment.Said matching module 12 is set according to parameters such as the impedance of the antenna that is adopted 11, gains, thus the wireless signal that receives of stabilized antenna as much as possible.Because the antenna element 1 in the present embodiment can adopt the existing unit in the existing wireless communications equipment with wireless communication unit 4, so no longer detailed here elaboration.
Be preset with voltage detecting time interval T in the voltage detection module 2 in the present embodiment, and the voltage U that whenever detects on the once said antenna element 1 at a distance from a said voltage detection module 2 of said voltage detecting time interval T.Wherein preferably said voltage detecting time T can adopt 1 second to 3600 seconds in the present embodiment, and more preferably said voltage detecting time T is 10 seconds.Said in addition voltage detecting time T can also adopt different time length according to user's actual needs, and the time range that is not limited only to adopt in the present embodiment.
Be preset with the mapping table L of voltage and connection status and said connection status judge module 3 inquired about and judged said antenna element from the mapping table L of said voltage and connection status according to the voltage U of said voltage detection module 2 detections connection status in the said connection status judge module 3.Wherein the user can set up the mapping table L of said voltage and connection status as required on their own, and institute but also is applicable to user-defined antenna so that the connection status of antenna pick-up unit is not only applicable to standard antenna.
And said connection status judge module 3 also is used for the connection status to the said antenna element of wireless communication unit 4 transmissions; In addition; Can also be according to the practical structures and the requirement of Wireless Telecom Equipment; The connection status of said antenna element is sent to other unit, and is not limited only to the wireless communication unit 4 in the present embodiment.
The principle of work of present embodiment is following:
At first the user sets voltage and the mapping table L of connection status and the voltage detecting time interval T of said voltage detection module 2 of said connection status judge module 3.
This moment antenna element 1 in running order and with the wireless signal that receives through after the stabilized treatment, be sent to said wireless communication unit 4.
After waiting for voltage detecting time interval T, said voltage detection module 2 detects the voltage of antenna element 1 then.Said connection status judge module 3 is according to the voltage of detected voltage and setting and the mapping table L of connection status, and inquiry is also judged connection status of antenna, and be sent to said wireless communication unit 4.
Second embodiment:
Shown in Figure 2 is the circuit structure block diagram of connection status of antenna pick-up unit, comprising an antenna 11, wireless communication chips 3, resistance 21,22 and 23, one inductance 121, an electric capacity 122.Comprise a power end 31, an analog to digital converter 32 and a communication module 33 in the wherein said wireless communication chips 3.
Inductance 121 in the present embodiment has constituted a matching module with electric capacity 122, and constitutes antenna elements jointly with antenna 11.The equiva lent impedance of wherein said antenna 11 is R 11=10K Ω is so in order to reach the purpose of the wireless signal that stabilized antenna accepts, adopting inductance 121 is L 121=47nH, electric capacity 122 is C 122The matching module of=33pF is stablized the wireless signal that receives.
Resistance 21,22 in the present embodiment and 23 and wireless communication chips 3 in power end 31 and analog to digital converter 32 constituted voltage detection unit jointly.The magnitude of voltage of wherein said power end 31 is V Aux=2.85V.As shown in Figure 2, said resistance 21 is electrically connected between said power end 31 and the inductance 121, and said analog to digital converter 32 also is electrically connected to said inductance 121 through resistance 22, said inductance 121 also through resistance 23 be electrically connected.And the resistance in the present embodiment 21,22 and 23 and power end 31 constituted the voltage that the voltage detecting network detects antenna element, said analog to digital converter 32 is used for detected voltage is converted into digital value by the analogue value.Wherein said resistance 21,22 and 23 resistance are respectively R 21=15K Ω, R 22=15K Ω and R 23=20.6K Ω.
The communication module 33 of wireless communication chips 3 is used to receive the wireless communication signals through after stable, the equally also connection status of receiving antenna unit in the present embodiment.
Wireless communication chips in the present embodiment 3 also is used for the connection status of wireless communication signals that receives and antenna element is sent to other unit or other outside equipment of Wireless Telecom Equipment in addition.If the Wireless Telecom Equipment of user's outside does not need said reporting information, also can adopt wireless communication chips 3 with said reporting functions.
Wireless communication chips 3 in the present embodiment also is preset with the mapping table L and the voltage detecting time interval T of voltage and connection status, and from the mapping table L of said voltage and connection status, inquires about and judge the connection status of said antenna element according to the voltage U that detects.Wherein said voltage detecting time interval T is 10 seconds.The mapping table L of described voltage and connection status is as shown in table 1 below, and each connection status is also corresponding to different reporting informations, thereby through reporting above-mentioned reporting information to report the connection status of antenna element.
Table 1
Figure BSA00000454936500061
The user can also freely self-defined said voltage and the mapping table L of connection status in addition, and be not limited only to the mapping table L of the voltage shown in the table 1 and connection status in the present embodiment.
The principle of work of present embodiment is following:
At first the user is to the mapping table L and the voltage detecting time interval T of wireless communication chips 3 setting voltages and connection status.
After wireless communication chips 3 is waited for voltage detecting time interval T then, the voltage of the analog to digital converter 32 sampling antenna elements of said wireless communication chips 3.
In the present embodiment, if antenna normally connects, then the voltage of analog to digital converter sampled point is shown in formula (1):
V adc = V aux × R 11 × R 23 R 11 × R 23 + R 21 × ( R 11 + R 23 ) - - - ( 1 )
Can obtain V through calculating Adc=0.88 volt; So the voltage of sampling is in 0.6-1 volt scope; Thereby can obtain antenna and be in normal connection status; And the mapping table L through voltage shown in the table 1 and connection status to obtain reporting information be 0, then the communication module 33 of said reporting information through described wireless communication chips 3 sent to the outside.
If antenna does not connect, then the voltage of analog to digital converter 32 sampled points is shown in formula (2):
V adc＝V aux×(R 23/(R 21+R 23))(2)
Can obtain V through calculating Adc=1.65 volts; So sampled voltage is in 1.45-1.85 volt scope; Thereby obtain antenna and be in not-connected status; And the mapping table L through voltage shown in the table 1 and connection status to obtain reporting information be 3, then the communication module 33 of said reporting information through described wireless communication chips 3 sent to the outside.
If antenna short circuit is to ground, then since analog to digital converter 32 directly be electrically connected, so V Adc=0 volt; Said sampled voltage is less than 0.2 volt; Thereby obtain antenna short circuit to ground, and the mapping table L through voltage shown in the table 1 and connection status to obtain reporting information be 1, then the communication module 33 of said reporting information through described wireless communication chips 3 sent to the outside.
If antenna overvoltage or be connected to other high-voltage power supplies, then since analog to digital converter 32 directly be electrically connected with the high-voltage power supply of outside etc., so V AdcPower source voltage for the outside; For example outside 12 volts of power supplys; Thereby sampled voltage is greater than 2 volts; Therefore obtain the antenna overvoltage or be connected to other high-voltage power supplies, and the mapping table L through voltage shown in the table 1 and connection status to obtain reporting information be 2, then the communication module 33 of said reporting information through described wireless communication chips 3 sent to the outside.
Shown in Figure 3 is the process flow diagram of connection status of antenna detection method, comprising following steps:
Step 101, the voltage detecting time interval T of user's setting voltage detection module and the voltage of connection status module and the mapping table L of connection status.
Step 102, voltage detection module detect the voltage of antenna element after waiting for voltage detecting time interval T.
Step 103, the connection status judge module reads the testing result of voltage detection module, and judges the connection status of said antenna element according to the mapping table L of said voltage and connection status.
Step 104, said connection status judge module is sent to external unit with the connection status of the antenna element of judging, returns step 102 then.
Can constantly detect the state of antenna element through above-mentioned connection status of antenna detection method, for the user provides instant antenna element status information.
Though more than described embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is limited appended claims.Those skilled in the art can make numerous variations or modification to these embodiments under the prerequisite that does not deviate from principle of the present invention and essence, but these changes and modification all fall into protection scope of the present invention.

Claims (8)

1. a connection status of antenna pick-up unit comprises an antenna element, it is characterized in that, said connection status of antenna pick-up unit also comprises:
One voltage detection module is used for predeterminated voltage detection time detecting the voltage on the said antenna element at interval and according to the said voltage detecting time interval;
One connection status judge module is used for the mapping table of predeterminated voltage and connection status and the connection status of judging said antenna element according to the voltage and the said mapping table of detection.
2. connection status of antenna pick-up unit as claimed in claim 1 is characterized in that said connection status judge module also is used for sending to external unit the connection status of said antenna element.
3. according to claim 1 or claim 2 connection status of antenna pick-up unit; It is characterized in that; Said voltage detection module comprises a power end, an analog to digital converter, one first resistance, one second resistance and one the 3rd resistance; Wherein said analog to digital converter is electrically connected with said antenna element through first resistance, and said power end is electrically connected with external power source and passes through second resistance and is electrically connected with said antenna element, second resistance that said power end also passes through to connect and the 3rd resistance be electrically connected.
4. connection status of antenna pick-up unit as claimed in claim 1 is characterized in that, said antenna element comprises an antenna and a matching module, and said matching module is used to stablize the wireless signal of said antenna input.
5. connection status of antenna pick-up unit as claimed in claim 4 is characterized in that, said matching module comprises an electric capacity and an inductance, and said electric capacity is electrically connected with external unit, and said inductance is electrically connected with said voltage detection module.
6. connection status of antenna pick-up unit as claimed in claim 1 is characterized in that, the said voltage detecting time interval more than or equal to 1 second smaller or equal to 3600 seconds.
7. the connection status of antenna detection method of a connection status of antenna pick-up unit as claimed in claim 1 is characterized in that, said connection status of antenna detection method may further comprise the steps:
S 101, user's setting voltage detection module the voltage detecting time interval and the voltage of connection status module and the mapping table of connection status;
S 102, voltage detection module waiting for voltage detecting after the time interval, detects the voltage of antenna element;
S 103, the connection status judge module reads the testing result of voltage detection module, and judges the connection status of said antenna element according to the mapping table of said voltage and connection status.
8. connection status of antenna detection method as claimed in claim 7 is characterized in that, saidly connects the connection status that condition judgment module also is used for sending to external unit said antenna element, and at step S 103The back is further comprising the steps of:
Said connection status judge module is sent to external unit with the connection status of the antenna element of judging.
CN2011100667327A 2011-03-18 2011-03-18 Antenna connection status detection device and detection method thereof Pending CN102680844A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104580629A (en) * 2013-10-23 2015-04-29 厦门雅迅网络股份有限公司 Device for detecting mobile phone module antenna open circuit based on signal improvement and detection method
CN104849529A (en) * 2015-05-05 2015-08-19 西安电子工程研究所 Indirect measurement method for extremely-high-amplitude voltage during extremely fast risetime
CN104931847A (en) * 2015-07-09 2015-09-23 广东欧珀移动通信有限公司 Terminal of determining whether NFC antenna to be in poor contact state and method thereof
CN105866547A (en) * 2015-01-23 2016-08-17 神讯电脑(昆山)有限公司 Active antenna tester
CN107688131A (en) * 2016-08-06 2018-02-13 国基电子（上海）有限公司 MIMO antenna system

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104580629A (en) * 2013-10-23 2015-04-29 厦门雅迅网络股份有限公司 Device for detecting mobile phone module antenna open circuit based on signal improvement and detection method
CN104580629B (en) * 2013-10-23 2018-08-24 厦门雅迅网络股份有限公司 One kind being based on the improved mobile module antenna open circuit detecting device of signal and method
CN105866547A (en) * 2015-01-23 2016-08-17 神讯电脑(昆山)有限公司 Active antenna tester
CN105866547B (en) * 2015-01-23 2019-04-19 神讯电脑(昆山)有限公司 Active antenna test device
CN104849529A (en) * 2015-05-05 2015-08-19 西安电子工程研究所 Indirect measurement method for extremely-high-amplitude voltage during extremely fast risetime
CN104931847A (en) * 2015-07-09 2015-09-23 广东欧珀移动通信有限公司 Terminal of determining whether NFC antenna to be in poor contact state and method thereof
CN104931847B (en) * 2015-07-09 2017-08-29 广东欧珀移动通信有限公司 It is a kind of judge NFC antenna whether the terminal and method of loose contact
CN107688131A (en) * 2016-08-06 2018-02-13 国基电子（上海）有限公司 MIMO antenna system

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Application publication date: 20120919