CN101060359B - Antenna selection method and device - Google Patents
Antenna selection method and device Download PDFInfo
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- CN101060359B CN101060359B CN2006100746559A CN200610074655A CN101060359B CN 101060359 B CN101060359 B CN 101060359B CN 2006100746559 A CN2006100746559 A CN 2006100746559A CN 200610074655 A CN200610074655 A CN 200610074655A CN 101060359 B CN101060359 B CN 101060359B
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Abstract
The provided antenna selection method comprises: detecting received signal locking state, signal strength and noise energy, and accordingly obtaining a optimal parameter, wherein the relative device includes: multiple input ends to receive radio signal from multiple channels, a switch module controlled by a microprocessor, and a tuner to converse the radio signal into readable signal for computer.
Description
Technical field
The present invention is about the method and the device of a kind of day line options, particularly, and about a kind of method and device of selecting antenna according to bag integrality, signal strength signal intensity and noise size.
Background technology
At present, many electronic installations all have the function that receives wireless signal, and these devices generally all are provided with antenna, to strengthen the signal receiving efficiency.But, because problems such as base station the direction difference or the signal that transmit reflect, diffraction or reflection may cause an antenna can't receive all problems from the signal of base station.Therefore, need utilize many antennas to receive wireless signal, yet this has also produced the problem that will select to use which antenna.
At patent No. US5, in 844,632 the United States Patent (USP), a kind of diversity receiving device with many antennas is disclosed, its selective reception signal strength signal intensity antenna the strongest and that the analog signal noise is minimum uses.But US5 analyzes at analog wireless signals for 844,632, then not necessarily is suitable for for digital signal (for example digital television ground broadcast signal).Moreover the strong more signal quality of not representing of signal strength signal intensity is good more, and the signal that intensity is the strongest may be because supersaturation rather than best selection take place.If the phenomenon that signal overlaps because of the refraction or the relation of diffraction, and the signal strength signal intensity that overlaps is all very strong, and it is good that the signal that antenna receives then may take place, but still can not receive data conditions.In addition, US5,844,632nd, after relatively finishing the received signal of all antennas, just to select to use one of them antenna, process is also quite consuming time.
Therefore, be necessary to provide a kind of antenna selecting method, receive wireless signal in order to select optimal antenna fast.
Summary of the invention
In view of the existing problem of prior art, the invention provides the method and the device of a kind of day line options.
According to an aspect of the present invention, provide a kind of antenna selecting method that is used for an electronic installation.This electronic installation has a plurality of antenna inputs, in order to connect a plurality of antennas respectively, to receive the wireless signal of a plurality of channels (channels).Method of the present invention comprises following steps: (a) at a channel, detect the signal that one of them received of a plurality of antennas; (b) judge whether the bag (packet) of this antenna received signal is complete, if then proceed to step (c), then gets back to step (a) if not, continue to detect another antenna; (c), and obtain a priority parameter value according to the signal strength signal intensity and the noise size of received signal; (d) judge whether the priority parameter value falls into a preset range,, then proceed to step (e) if not if then select to use this antenna and detection of end operation; And (e) judge whether that all antennas all detect and finish, then get back to step (a) if not, continue to detect another antenna, wherein this noise size is represented the error rate size of the bag of received signal, and this priority parameter value is used down and obtained: the intensity level of signal is divided into a plurality of intensity sections in advance; The noise level of signal is divided into a plurality of noise sections in advance; With the signal strength signal intensity of this received signal and noise and this a plurality of intensity sections and should contrast by a plurality of noise sections, and obtain an intensity parameters value and a noise parameter value of this received signal respectively; And with this intensity parameters value and this noise parameter value addition and obtain this priority parameter value.
According to a further aspect in the invention, provide a kind of circuit that is used for an electronic installation.This electronic installation has a plurality of antenna inputs, in order to connect a plurality of antennas respectively, to receive the wireless signal of a plurality of channels (channels).This circuit comprises: all die change pieces (switch module), and in order to be coupled to a plurality of antenna inputs, wherein handover module is controlled by a microprocessor, receives wireless signal with one of them that select a plurality of antennas; Wherein this microprocessor is according to the priority parameter value of each antenna, selects wherein that an antenna receives wireless signal and control this handover module, and this microprocessor is used for: (a) at a channel, detect the signal that one of them received of these a plurality of antennas; (b) judge whether the bag of this one of them antenna received signal is complete, if then proceed to step (c), then gets back to step (a) if not, continue to detect another antenna; (c), and obtain a priority parameter value according to the signal strength signal intensity and the noise size of this received signal; (d) judge whether this priority parameter value falls into a preset range,, then proceed to step (e) if not if then select to use this antenna and detection of end operation; And (e) judge whether that all antennas all detect and finish, then get back to step (a) if not, continue to detect another antenna, wherein this noise size is represented the error rate size of the bag of received signal, and this priority parameter value is used down and obtained: the intensity level of signal is divided into a plurality of intensity sections in advance; The noise level of signal is divided into a plurality of noise sections in advance; With the signal strength signal intensity of this received signal and noise and this a plurality of intensity sections and should contrast by a plurality of noise sections, and obtain an intensity parameters value and a noise parameter value of this received signal respectively; And with this intensity parameters value and this noise parameter value addition and obtain this priority parameter value.
According to another aspect of the invention, provide a kind of electronic installation.This electronic installation has a plurality of antenna inputs, in order to connect a plurality of antennas respectively, to receive the wireless signal of a plurality of channels.This electronic installation comprises: all die change pieces are coupled to a plurality of antenna inputs; One microprocessor, the control handover module receives wireless signal with one of them that select a plurality of antennas; Wherein this microprocessor is according to the priority parameter value of each antenna, selects wherein that an antenna receives wireless signal and control this handover module, and this microprocessor is used for: (a) at a channel, detect the signal that one of them received of these a plurality of antennas; (b) judge whether the bag of this one of them antenna received signal is complete, if then proceed to step (c), then gets back to step (a) if not, continue to detect another antenna; (c), and obtain a priority parameter value according to the signal strength signal intensity and the noise size of this received signal; (d) judge whether this priority parameter value falls into a preset range,, then proceed to step (e) if not if then select to use this antenna and detection of end operation; And (e) judge whether that all antennas all detect and finish, then get back to step (a) if not, continue to detect another antenna, wherein this noise size is represented the error rate size of the bag of received signal, and this priority parameter value is used down and obtained: the intensity level of signal is divided into a plurality of intensity sections in advance; The noise level of signal is divided into a plurality of noise sections in advance; With the signal strength signal intensity of this received signal and noise and this a plurality of intensity sections and should contrast by a plurality of noise sections, and obtain an intensity parameters value and a noise parameter value of this received signal respectively; And with this intensity parameters value and this noise parameter value addition and obtain this priority parameter value.
The narration and the description of drawings that cooperate following preferred embodiment, purpose of the present invention, embodiment, feature, and advantage will be more clear.
Description of drawings
Fig. 1 is a wireless signal receiving system represented according to the present invention;
Fig. 2 is an embodiment of circuit module shown in Figure 1;
Fig. 3 is a represented method flow diagram according to the present invention, in order to determine a priority parameter value of an antenna;
Fig. 4 represents a method flow diagram, when an electronic installation is started shooting, selects the method for antenna in order to explanation according to the priority parameter value that Fig. 3 determined; And
Fig. 5 represents a method flow diagram, when an electronic installation switches receiving channels, selects the method for antenna in order to explanation according to the priority parameter value that Fig. 3 determined.
The figure elements symbol description
100, wireless signal receiving system
112,114,212,214,216, antenna
120, electronic installation 122,124, input
130,230, circuit module 140,240, handover module
150,250, tuner 160, processor
242, switch 244, amplifier
246, signal transmssion line
Embodiment
The present invention discloses a kind of antenna selecting method and device.In order to make narration of the present invention more detailed and complete, can be with reference to the accompanying drawing of following description and cooperation Fig. 1 to Fig. 5.Device, element and method step described in right following examples in order to explanation the present invention, is not in order to limit the scope of the invention only.
Fig. 1 is a wireless signal receiving system 100 represented according to the present invention, comprises an electronic installation 120 and in order to receive the antenna 112,114 of wireless signal.Electronic installation 120 can for example be a digital television, a set-top box (set-top box) or the personal computer that is equipped with ground TV broadcast receiving card (tunercard) or satellite television broadcasting receiving card.According to the difference of application type, antenna 112 and 114 can be designed in order to receive different types of wireless signal, for example DTB Digital Terrestrial Broadcasting signal, digital satellite broadcasting signal or other radiofrequency signals etc.In addition, antenna 112 and 114 can be various known antenna structures, for example plate aerial, helical antenna etc., and be not limited to single-frequency, double frequency or multifrequency antenna.Electronic installation 120 comprises two antenna inputs 122 and 124, in order to connect antenna 112 and 114 respectively.In another embodiment of the present invention, wireless signal receiving system 100 can comprise the individual antenna of N (greater than 2), and electronic installation 120 also has a corresponding N antenna input, in order to connect N antenna respectively, and this N antenna input can be dispersed in the different parts (for example top or side) of electronic installation 120, to receive the wireless signal from different directions.
Fig. 2 is an embodiment of circuit module shown in Figure 1.In Fig. 2, circuit module 230 comprises all die change pieces 240 and a tuner 250, and wherein handover module 240 also comprises a switch 242 and an amplifier 244.Switch 242 is connected with first antenna 212, second antenna 214 to the N antenna 216, in order to will be wherein the wireless signal that received of an antenna be sent to amplifier 244.These antenna can be in order to receive the wireless signal of a plurality of channels (channels).Amplifier 244 is in order to optionally to amplify the wireless signal from switch 242, and wherein amplifier 244 can for example be known low noise amplifier with variable gain.Switch 242 and amplifier 244 are connected to a processor (figure does not show) by signal transmssion line 246, whether this processor can exist in order to judge each antenna, and can control switch 242 according to the signal that each antenna received and select whether amplifying signal intensity of those antennas and control amplifier 244.At different channel, processor may command switch 242 is selected different antennas.Note that switch 242 and amplifier 244 also can be linked up by different signal transmssion lines and processor, the present invention does not limit its communication way.
The present invention is according to the priority parameter value of each antenna, and decision selects to use that antenna.Fig. 3 is a represented method flow diagram according to the present invention, in order to determine a priority parameter value of an antenna.At first, in step S310, detect the intensity of the received signal of an antenna.After the present invention is divided into a plurality of sections with signal strength signal intensity in advance, specify different parameters to give this a plurality of sections more respectively according to the how appropriate of intensity.With the intensity of antenna received signal and each intensity section contrast that sets in advance, can obtain an intensity parameters value.The intensity section division will be variant according to the difference of application system.For instance, designated parameter value 2 give intensity between 0dBm (dBm) and-75dBm between section, designated parameter value 1 give the section of intensity for section and the designated parameter value 0 of intensity greater than 0dBm less than-75dBm.In this embodiment, if the intensity of antenna received signal is-50dBm that then its intensity parameters value is 2.In another embodiment, signal strength signal intensity can be divided into 5 sections in advance, and difference designated parameter value 4,3,2,1,0 is given each section according to the height of its how appropriate.The present invention is the quantity and the dividing mode thereof of limited strength section not, those skilled in the art can carry out different sections according to different application and divide, again according to the how appropriate of each section height and specify different parameter values respectively, the how appropriate high section of healing wherein, parameter value is also higher.Be noted that the strong more not representation signal of intensity is good more,, may cause oversaturated phenomenon to take place if signal strength signal intensity is strong excessively.
Then, in step S320, detect the size of the noise level that an antenna received.After the present invention is divided into a plurality of sections with noise level in advance, specify different parameters to give this a plurality of sections more respectively according to the size of noise level.The noise level that antenna is received and each noise section contrast that sets in advance, and obtain a noise parameter value.According to one embodiment of the invention, noise is represented the size of PER (packet errorrate), and promptly signal transmits the ratio of losing the position in the receiving course.The noise section division will be variant according to the difference of system.For instance, designated parameter value 1 gives noise level less than 5 * 10
-3The section of PER (being to have 5 in per 1000 positions can not receive), and designated parameter value 0 gives noise level greater than 5 * 10
-3The section of PER.In this embodiment, if the noise level of antenna received signal is 1 * 10
-3, then its noise parameter value is 1.In another embodiment, noise level can be divided into 4 sections in advance, and difference designated parameter value 0,1,2,3 is given each section according to the size of noise level.The present invention does not limit the quantity and the dividing mode thereof of noise section, those skilled in the art can carry out different sections according to different application and divide, again according to the how appropriate of each section height and specify different parameter values respectively, the noise level low section of healing wherein, parameter value is higher.
Then, in step S330, judge whether the received signal packet of antenna locks (lock).Can be surrounded by latch-up-free decides according to receiving complete signal.For instance, in received a series of bit stream (bit stream), just confirm the sync byte (sync byte) in the header (header), and recognize the bit data that will may be read into its back regular length behind the sync byte, just calculate and receive a complete bag, also just calculate locking.Yet, need in how many positions, just to confirm that sync byte just calculates locking, the present invention and indefinite, and come and determine by various practical applications.Then, in step S340, the priority parameter value of decision antenna.Be locking if judge the received signal packet of antenna among the step S330, then the priority parameter value of this antenna will be set at resulting numerical value after its intensity parameters value and the addition of noise parameter value.If be judged as not locking in step S330, then the priority parameter value of this antenna will be set at zero.Wherein, the maximum of priority parameter value is the maximum that the maximum of intensity parameters adds noise parameter, in other words, if the received signal of antenna has optimal intensity and minimum noise level, then the priority parameter value of this antenna equals a predetermined maximum.
Fig. 4 represents a method flow diagram, when an electronic installation is started shooting, selects the method for antenna in order to explanation according to the priority parameter value that Fig. 3 determined.Electronic installation of the present invention has a plurality of antenna inputs, in order to connect a plurality of antennas respectively, to receive the wireless signal of a plurality of channels (channels).At a channel, can select to receive by the preferable antenna of reception wherein.Electronic installation one start, its internal circuit will be carried out method step shown in Figure 4.At first, in step S400, whether have antenna be installed on electronic installation on, that is whether antenna normally is connected with the antenna input of electronic installation if detecting.If no any antenna is installed, then program proceeds to step S405, and electronic installation produces a cue, can use to notify the user not have any antenna.If detected any antenna and be installed on the electronic installation, then program proceeds to step S410, carries out initialized operation, and the priority parameter value of mounted antenna is set at zero.Then, in step S415, judge whether that all channels all detect to finish,, finish this method if then program proceeds to step S420.If not, then program proceeds to step S425, and selecting wherein, a channel that does not detect detects.Generally speaking, each channel is arranged in regular turn number, and method of the present invention can be selected channel detection in regular turn according to the sequence number size of channel, but is not limited to according to this order.Then, in step S430,, select to have installed but the antenna that do not detect as yet at step S425 selected channel.Generally speaking, can be in advance with all antenna layout sequence numbers, and select antenna to detect in regular turn according to the sequence number size.In step S435, the priority parameter value of the selected antenna of calculation procedure S430, and judge whether this priority parameter value equals a predetermined maximum.The computational methods of priority parameter value have been described in the explanation that is relevant to Fig. 3, so do not give unnecessary details.In step S435, if be judged as and be, then program proceeds to step S440, sets this antenna and is the antenna in order to the wireless signal that receives present detection channel, and store the priority parameter value of this antenna.Then, program is got back to step S415, to detect at other channels.According to the present invention, for arbitrary specific channel, need only one and find the priority parameter value to equal the antenna of predetermined maximum, just stop detection at this specific channel, no longer judge the priority parameter value of other antennas, therefore can accelerate detection speed.Therefore, during end, the antenna that may still have some not detect as yet.Yet, in other embodiments, also can after having detected all antennas, determine the antenna that institute's desire is used again at this specific channel.
If the judged result of step S435 is that then program does not proceed to step S445, store the priority parameter value of institute's detection antenna, use for subsequent step.Then, in step S450,, judge whether that all mounted antennas all detect to finish, if not, then get back to step S430, detect to select other antennas at selected channel.If then program proceeds to step S455,, select antenna with maximum relatively priority parameter value according to the priority parameter value of each antenna that is write down among the step S445.If there is the priority parameter value of two above antennas identical and all be relative maximum, then select one of them, its system of selection is decided with application, and the present invention does not limit.For instance, can select, also can be set at random and select according to the size of antenna sequence number, intensity parameters value or noise parameter value.Then, program is got back to step S440, and the selected antenna settings of step 455 is the antenna in order to the wireless signal that receives present detection channel, and stores the priority parameter value of this antenna.
Electronic installation of the present invention can automatically perform method shown in Figure 4 when a start, to write down the antenna that each channel institute desire is used.The present invention also provides the antenna selecting method of electronic installation when switching institute's receiving channels, as shown in Figure 5.Fig. 5 represents a method flow diagram, when an electronic installation switches institute's receiving channels, selects the method for antenna in order to explanation according to the priority parameter value that Fig. 3 determined.This electronic installation is carried out method step shown in Figure 4 when start, and has write down antenna and priority parameter value thereof that each channel institute desire is used.As above-mentioned, when electronic installation when channel A switches to channel B, its internal circuit will be carried out method step shown in Figure 5.At first, in step S500, judge whether channel B sets (method of Fig. 4) is predetermined maximum in order to the priority parameter value (method of Fig. 3) of the antenna that receives wireless signal.If then program proceeds to step S505, electronic installation uses the antenna that sets to come the signal of receiving channels B.If not, then program proceeds to step S510, at channel B, selects a mounted wherein antenna to detect.In step S515, the priority parameter value of selected antenna among the calculation procedure S510, and judge whether this priority parameter value equals predetermined maximum.The computational methods of priority parameter value are identical with Fig. 3, so do not give unnecessary details.If then program proceeds to step S520, use this antenna to come the signal of receiving channels B, and write down this antenna and priority parameter value thereof.If the judged result of step S515 is that then program does not proceed to step S525, store the priority parameter value of institute's detection antenna, use for subsequent step.Then, in step S530,, judge whether that all mounted antennas all detect to finish, if not, then get back to step S510, detect to select other antennas at channel B.If then program proceeds to step S535,, select antenna with maximum relatively priority parameter value according to the priority parameter value of each antenna that is write down among the step S520.If there is the priority parameter value of two above antennas identical and all be relative maximum, then can select a wherein antenna according to the size of antenna sequence number, intensity parameters value or noise parameter value, also can select at random.
To sum up state, according to the present invention, electronic installation just carries out the scanning of antenna at each channel automatically when a start, and at the different antenna of each channel setting.And when switching channels, whether the antenna that scanning set when electronic installation can be selected start earlier for use if the priority parameter value of this antenna less than predetermined maximum, detects other antennas again, needs switched antenna with decision.In addition, the present invention's one start promptly detects to have or not earlier and fixes up an aerial wire, and does not detect any antenna if having, and just notifies the user to install, and after need not waiting until that all channels all finish the scanning of antenna, just finds not receive any signal.And when each antenna of scanning, electronic installation only can detect mounted antenna, makes that the detection of antenna and switching are more efficient.At last,, only need on existing framework, to increase all die change pieces (as the element 140 of Fig. 1),, can realize the present invention, and need not increase too much cost in the control of collocation appropriate software in the part of hardware.
In another embodiment of the present invention, the predetermined maximum of priority parameter value can replace by a preset range, as long as the priority parameter value of antenna falls in this preset range, promptly selects to use this antenna.For instance, predetermined maximum and the predetermined second largest value that can set the priority parameter value are a preset range, therefore in the step S435 of Fig. 4, if the priority parameter value of institute's detection antenna equals predetermined maximum or predetermined second largest value, then select to use this antenna.
In another embodiment of the present invention, except start and can carry out during switching channels the method for selecting antenna, whether electronic installation also can utilize the neutral gear of machine works to come execution graph 4 or method shown in Figure 5 at any time, change with the priority parameter value of checking institute's use antenna.
Though the present invention with preferred embodiment openly as above; right its is not that any those skilled in the art are under the situation that does not break away from the spirit and scope of the present invention in order to qualification the present invention; can change and modification, so protection scope of the present invention is as the criterion with the claim institute restricted portion that is proposed.
Claims (17)
1. antenna selecting method that is used for an electronic installation, this electronic installation has a plurality of antenna inputs, and in order to connect a plurality of antennas respectively, to receive the wireless signal of a plurality of channels, the method includes the steps of:
(a), detect the signal that one of them received of these a plurality of antennas at a channel;
(b) judge whether the bag of this one of them antenna received signal is complete, if then proceed to step (c), then gets back to step (a) if not, continue to detect another antenna;
(c), and obtain a priority parameter value according to the signal strength signal intensity and the noise size of this received signal;
(d) judge whether this priority parameter value falls into a preset range,, then proceed to step (e) if not if then select to use this antenna and detection of end operation; And
(e) judge whether that all antennas all detect and finish, then get back to step (a) if not, continue to detect another antenna,
Wherein this noise size is represented the error rate size of the bag of received signal, and this priority parameter value is used down and obtained:
The intensity level of signal is divided into a plurality of intensity sections in advance;
The noise level of signal is divided into a plurality of noise sections in advance;
With the signal strength signal intensity of this received signal and noise and this a plurality of intensity sections and should contrast by a plurality of noise sections, and obtain an intensity parameters value and a noise parameter value of this received signal respectively; And
With this intensity parameters value and this noise parameter value addition and obtain this priority parameter value.
2. the method for claim 1 wherein also comprises following steps in this step (a):
Whether (x1) detect these a plurality of antennas and normally be connected with these a plurality of antenna inputs, the wherein normal antenna that connects, do not have the normal antenna that connects and then do not carry out subsequent step if just carrying out subsequent step.
3. method as claimed in claim 2 wherein also comprises following steps in this step (x1):
(x2) if all these a plurality of antennas all do not have normal the connection with these a plurality of antenna inputs, then this electronic installation produces a cue, does not have in order to indication to fix up an aerial wire.
4. method as claimed in claim 3, wherein this step (e) also comprises following steps:
(e1) if all antennas all detect and finish, then according to the resulting priority parameter value of this antenna size respectively, selecting wherein, an antenna uses.
5. method as claimed in claim 4 wherein also comprises following steps:
(f) write down the priority parameter value of the antenna of this selected use and this antenna greatly less than in this electronic installation; And
(g) at another channel, repeating step (a) is up to record all channels institute antenna of use respectively.
6. method as claimed in claim 5, wherein step (a) to (g) is carried out when this electronic installation is started shooting at every turn.
7. method as claimed in claim 5 also comprises following steps:
When (h) switching to succeeding channel, judge whether the priority parameter value of the antenna that is write down of this succeeding channel falls into this preset range,, then proceed to step (i) if not if then use the antenna that this write down to receive wireless signal;
(i) repeating step (a) is to (f), and an antenna receives wireless signal to select wherein.
8. method as claimed in claim 7, wherein this step (h) also comprises following steps:
(h1) not during switching channels, whether the priority parameter value that detects institute's use antenna every a scheduled time reduces, if then repeating step (a) is to (f), uses to select another antenna.
9. circuit that is used for an electronic installation, this electronic installation has a plurality of antenna inputs, and in order to connect a plurality of antennas respectively, to receive the wireless signal of a plurality of channels, this circuit comprises:
All die change pieces, in order to be coupled to this a plurality of antenna inputs, wherein this handover module is controlled by a microprocessor, receives wireless signal with one of them that select these a plurality of antennas;
Wherein this microprocessor is according to the priority parameter value of each antenna, selects wherein that an antenna receives wireless signal and control this handover module, and this microprocessor is used for:
(a), detect the signal that one of them received of these a plurality of antennas at a channel;
(b) judge whether the bag of this one of them antenna received signal is complete, if then proceed to step (c), then gets back to step (a) if not, continue to detect another antenna;
(c), and obtain a priority parameter value according to the signal strength signal intensity and the noise size of this received signal;
(d) judge whether this priority parameter value falls into a preset range,, then proceed to step (e) if not if then select to use this antenna and detection of end operation; And
(e) judge whether that all antennas all detect and finish, then get back to step (a) if not, continue to detect another antenna,
Wherein this noise size is represented the error rate size of the bag of received signal, and this priority parameter value is used down and obtained:
The intensity level of signal is divided into a plurality of intensity sections in advance;
The noise level of signal is divided into a plurality of noise sections in advance;
With the signal strength signal intensity of this received signal and noise and this a plurality of intensity sections and should contrast by a plurality of noise sections, and obtain an intensity parameters value and a noise parameter value of this received signal respectively; And
With this intensity parameters value and this noise parameter value addition and obtain this priority parameter value.
10. circuit as claimed in claim 9, wherein this handover module comprises:
One switch is connected to this a plurality of antenna inputs, and wherein this microprocessor is coupled to this switch, to judge whether these a plurality of antennas normally are connected with these a plurality of antenna inputs; And
One amplifier is connected to this switch, and in order to amplify the intensity of the wireless signal that receives, wherein this microprocessor is coupled to this amplifier, whether amplifies the wireless signal that this is received with control.
11. circuit as claimed in claim 9, wherein one of them of these a plurality of antenna inputs places the top of this electronic installation, and in these a plurality of antenna inputs wherein another places the both sides of this electronic installation.
12. an electronic installation has a plurality of antenna inputs, in order to connect a plurality of antennas respectively, to receive the wireless signal of a plurality of channels, this electronic installation comprises:
All die change pieces are coupled to this a plurality of antenna inputs; And
One microprocessor is controlled this handover module, receives wireless signal with one of them that select these a plurality of antennas;
Wherein this microprocessor is according to the priority parameter value of each antenna, selects wherein that an antenna receives wireless signal and control this handover module, and this microprocessor is used for:
(a), detect the signal that one of them received of these a plurality of antennas at a channel;
(b) judge whether the bag of this one of them antenna received signal is complete, if then proceed to step (c), then gets back to step (a) if not, continue to detect another antenna;
(c), and obtain a priority parameter value according to the signal strength signal intensity and the noise size of this received signal;
(d) judge whether this priority parameter value falls into a preset range,, then proceed to step (e) if not if then select to use this antenna and detection of end operation; And
(e) judge whether that all antennas all detect and finish, then get back to step (a) if not, continue to detect another antenna,
Wherein this noise size is represented the error rate size of the bag of received signal, and this priority parameter value is used down and obtained:
The intensity level of signal is divided into a plurality of intensity sections in advance;
The noise level of signal is divided into a plurality of noise sections in advance;
With the signal strength signal intensity of this received signal and noise and this a plurality of intensity sections and should contrast by a plurality of noise sections, and obtain an intensity parameters value and a noise parameter value of this received signal respectively; And
With this intensity parameters value and this noise parameter value addition and obtain this priority parameter value.
13. electronic installation as claimed in claim 12, wherein this handover module comprises:
One switch is connected to this a plurality of antenna inputs, and wherein this microprocessor is coupled to this switch, to judge whether these a plurality of antennas normally are connected with these a plurality of antenna inputs; And
One amplifier is connected to this switch, and in order to amplify the intensity of the wireless signal that receives, wherein this microprocessor is coupled to this amplifier, whether amplifies the wireless signal that this is received with control.
14. electronic installation as claimed in claim 12, wherein one of them of these a plurality of antenna inputs places the top of this electronic installation, and in these a plurality of antenna inputs wherein another places the both sides of this electronic installation.
15. an antenna selecting method that is used for an electronic installation, this electronic installation has a plurality of antennas, and to receive the wireless signal of one first channel, the method includes the steps of:
(a), detect the signal that one first antenna is received at this first channel;
(b) judge whether the bag of this first antenna received signal is complete, if then proceed to step (c), then gets back to step (a) if not, continue to detect one second antenna;
(c), and obtain one first priority parameter value according to the signal strength signal intensity and the noise size of this first antenna received signal;
(d) judge whether this first priority parameter value equals to fall into a preset value scope,, then proceed to step (e) if not if then this electronic installation selects to use this first antenna and detection of end operation; And
(e) judge whether that all antennas all detect and finish, then get back to step (a) if not, continue to detect this second antenna,
Wherein this noise size is represented the error rate size of the bag of received signal, and this priority parameter value is used down and obtained:
The intensity level of signal is divided into a plurality of intensity sections in advance;
The noise level of signal is divided into a plurality of noise sections in advance;
With the signal strength signal intensity of this received signal and noise and this a plurality of intensity sections and should contrast by a plurality of noise sections, and obtain an intensity parameters value and a noise parameter value of this received signal respectively; And
With this intensity parameters value and this noise parameter value addition and obtain this priority parameter value.
16. method as claimed in claim 15 wherein also comprises following steps in this step (a):
(x1) detect whether operate as normal of these a plurality of antennas, wherein the antenna of operate as normal just carries out subsequent step, and antenna that can't operate as normal does not then carry out subsequent step.
17. method as claimed in claim 15 wherein also comprises following steps in this step (x1):
(x2) if all this a plurality of antennas all can't operate as normal, then this electronic installation produces a cue, in order to indicate no antenna operate as normal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100746559A CN101060359B (en) | 2006-04-21 | 2006-04-21 | Antenna selection method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101521515B (en) * | 2008-02-26 | 2014-10-08 | 瑞昱半导体股份有限公司 | Integrated digital broadcast receiving system |
| CN103248383B (en) * | 2012-02-06 | 2015-12-16 | 宇龙计算机通信科技(深圳)有限公司 | The control method of terminal and terminal antenna |
| CN103414507A (en) * | 2013-07-26 | 2013-11-27 | 北京小米科技有限责任公司 | Mobile terminal and method and device for switching antennas of mobile terminal |
| CN104980205A (en) * | 2014-04-09 | 2015-10-14 | 中兴通讯股份有限公司 | Transmitter diversity circuit and mobile terminal |
| CN106612125B (en) * | 2015-10-22 | 2020-09-25 | 微软技术许可有限责任公司 | Apparatus and method for receiving broadcast |
| CN107733509A (en) * | 2017-08-30 | 2018-02-23 | 努比亚技术有限公司 | A kind of antenna switch triggering method, communication terminal and computer-readable storage medium |
| CN107645325A (en) * | 2017-08-30 | 2018-01-30 | 努比亚技术有限公司 | Antenna handover trigger control method, communication terminal and computer-readable recording medium |
| CN107659346A (en) * | 2017-08-30 | 2018-02-02 | 努比亚技术有限公司 | A kind of antenna switch triggering method, communication terminal and computer-readable storage medium |
| IL255437A (en) * | 2017-11-05 | 2018-03-29 | Israel Aerospace Ind Ltd | A dynamically adaptable multipurpose data acquisition system |
| CN109067449B (en) * | 2018-05-28 | 2021-08-03 | 成都市精准时空科技有限公司 | Multimode satellite communication terminal with multiple antenna lines and method |
| CN108832988B (en) * | 2018-05-28 | 2021-09-17 | 成都市精准时空科技有限公司 | Method for controlling communication of multimode satellite communication terminal and communication terminal |
| CN111313950B (en) * | 2018-12-11 | 2023-06-20 | 北京小米移动软件有限公司 | Antenna control method and device |
| TWI758798B (en) * | 2020-07-29 | 2022-03-21 | 廣達電腦股份有限公司 | Electronic device and method for antenna switching |
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