WO2015188366A1 - 选择被控设备的方法和控制设备 - Google Patents

选择被控设备的方法和控制设备 Download PDF

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Publication number
WO2015188366A1
WO2015188366A1 PCT/CN2014/079826 CN2014079826W WO2015188366A1 WO 2015188366 A1 WO2015188366 A1 WO 2015188366A1 CN 2014079826 W CN2014079826 W CN 2014079826W WO 2015188366 A1 WO2015188366 A1 WO 2015188366A1
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WO
WIPO (PCT)
Prior art keywords
controlled device
signal receiving
controlled
control device
strength
Prior art date
Application number
PCT/CN2014/079826
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English (en)
French (fr)
Inventor
匡运生
Original Assignee
华为技术有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to US15/033,092 priority Critical patent/US9715824B2/en
Priority to PCT/CN2014/079826 priority patent/WO2015188366A1/zh
Priority to CN201480046201.3A priority patent/CN105830130B/zh
Priority to EP14894543.9A priority patent/EP3057074B1/en
Publication of WO2015188366A1 publication Critical patent/WO2015188366A1/zh

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Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
    • GPHYSICS
    • G08SIGNALLING
    • G08CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C25/00Arrangements for preventing or correcting errors; Monitoring arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/30Monitoring; Testing of propagation channels
    • H04B17/309Measuring or estimating channel quality parameters
    • H04B17/318Received signal strength
    • GPHYSICS
    • G08SIGNALLING
    • G08CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C2201/00Transmission systems of control signals via wireless link
    • G08C2201/30User interface
    • G08C2201/32Remote control based on movements, attitude of remote control device
    • GPHYSICS
    • G08SIGNALLING
    • G08CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C2201/00Transmission systems of control signals via wireless link
    • G08C2201/70Device selection
    • G08C2201/71Directional beams

Definitions

  • the present invention relates to the field of wireless network applications, and in particular, to a method and a control device for selecting a controlled device. Background technique
  • signal carriers for device control and data transmission include optical communication and wireless electromagnetic wave communication.
  • the most typical optical communication application is Infrared Data As-station (I rDA) technology, which is widely used. It is used in remote controls of various household appliances; typical applications that rely on wireless electromagnetic waves as communication media include wireless fidelity (English: Wi reles s Fidelity, Wi_Fi) and Bluetooth.
  • IrDA technology has inherent advantages due to its good directivity, but because IrDA technology is simplex transmission, less information is carried and transmission distance is limited, it is not suitable for structural functions.
  • the selection of complex electronic devices, while wireless electromagnetic wave signals such as Wi-F i and Bluetooth are not directed transmission and reception signals, so the user needs to select the controlled device by himself, which may lead to user experience in an environment with more household appliances. decline. Summary of the invention
  • the embodiment of the invention provides a method and a control device for selecting a controlled device, so as to automatically identify the controlled device pointed by the control device and select the target controlled device.
  • an embodiment of the present invention provides a method for selecting a controlled device, which is applied to a wireless network composed of a control device and at least one controlled device, and the control device performs the following method: acquiring the at least one controlled device a first signal reception intensity of each controlled device in a diameter mode, and a second signal reception intensity in the multipath mode;
  • the target controlled device is determined, and the control interface of the target controlled device is displayed on the control device.
  • the method further includes: acquiring a current wireless channel environment model of the wireless network; generating, according to the current wireless channel environment model, each of the at least one controlled device in the wireless network The tap coefficients of the channel equalizer of the control device in the diameter mode and the tap coefficients in the multipath mode; the tap coefficients of the channel equalizer of each of the at least one controlled device in the diameter mode and The tap coefficients in the radial mode are respectively sent to the corresponding controlled devices, so that each of the controlled devices calculates the first signal receiving strength according to the tap coefficients of the respective channel equalizers in the diameter mode, and according to the respective The channel equalizer calculates the tapping coefficient in the multipath mode to obtain the second signal receiving strength.
  • the acquiring, by the controlled device, each of the at least one controlled device is The first signal reception strength in the diameter mode, comprising: broadcasting data to the at least one controlled device, and transmitting a request message to each of the at least one controlled device; receiving the at least one And a response message sent by each controlled device in the control device, where the response message includes a first signal receiving strength of the controlled device.
  • the acquiring the at least one controlled device The second signal receiving strength of each controlled device in the multipath mode includes: broadcasting data to the at least one controlled device, and sending a request report to each of the at least one controlled device And receiving a response message sent by each of the at least one controlled device, where the response message includes a second signal receiving strength of the controlled device.
  • the acquiring, by the device, the first signal receiving strength of each of the at least one controlled device in the diameter mode includes: The at least one controlled device broadcasts the data multiple times; acquires a plurality of signal receiving strengths corresponding to each controlled device in the diameter mode, and weights the received signal strengths of the plurality of signals corresponding to each controlled device in the diameter mode Processing, obtaining the first signal receiving strength; acquiring the second signal receiving strength of each controlled device in the multipath mode in the at least one controlled device, comprising: broadcasting to the at least one controlled device Obtaining a plurality of signal receiving strengths corresponding to each of the controlled devices in the multipath mode, and weighting the received signal strengths of the plurality of signals corresponding to each of the controlled devices in the diameter mode to obtain the Two signal reception strength.
  • the signal receiving intensity ratio of each controlled device is a ratio of a first signal receiving strength to a second signal receiving strength of each controlled device in the at least one controlled device; a ratio of a signal receiving intensity of each of the controlled devices to a preset signal receiving intensity corresponding to the controlled device, and determining whether the control device points to the corresponding controlled device, including: The signal receiving intensity ratio of each controlled device is greater than a preset signal receiving intensity ratio of the controlled device, and then determining that the control device points to the controlled device; otherwise, determining that the controlling device does not point to the Said controlled device; or
  • a signal receiving intensity ratio of each of the controlled devices a ratio of a second signal receiving strength of each of the at least one controlled device to a first signal receiving strength; the according to the at least one The ratio of the signal receiving intensity of each controlled device in the control device to the preset signal receiving intensity corresponding to the controlled device, determining whether the control device points to the corresponding controlled device, includes: if each of the devices is The signal receiving strength ratio of the control device is smaller than the preset signal receiving intensity ratio of the controlled device, and then the control device is determined to point to the controlled device, otherwise, the control device is determined not to point to the controlled device.
  • the determining the target controlled device from the controlled device pointed by the control device includes: determining that the control device only points to one controlled device, determining that the pointed controlled device is targeted Controlling the device; or determining that the control device points to two controlled devices, prompting the user to select information of the target controlled device, and selecting one of the two controlled devices as the processing device according to the processing instruction of the user The target controlled device; or determining that the control device points to more than two controlled devices, re-executing the method for selecting the controlled device, or prompting the user to select information of the target controlled device, according to the user
  • the processing instruction selects one of the controlled devices that is greater than two as the target controlled device.
  • the embodiment of the present invention provides a control device for selecting a controlled device, which is applied to a wireless network composed of a control device and at least one controlled device, where the control device includes: an acquiring unit, configured to acquire the a first signal reception intensity of each controlled device in the diameter mode in the at least one controlled device, and a second signal reception intensity in the multipath mode;
  • a calculating unit configured to obtain, according to a first signal receiving strength and a second signal receiving strength of each controlled device of the at least one controlled device, a signal receiving intensity ratio of each controlled device; a determining unit, configured to determine, according to a signal receiving intensity ratio of each of the at least one controlled device, a preset signal receiving intensity ratio corresponding to the controlled device, determining whether the control device points to a corresponding Control equipment
  • a determining unit configured to determine, from a controlled device pointed by the control device, a target controlled device, and display a control interface of the target controlled device on the control device.
  • the control device further includes: a generating unit, a sending unit: the acquiring unit is further configured to acquire a current wireless channel environment model of the wireless network The generating unit, configured to generate, according to the current wireless channel environment model, a tap coefficient and a multipath in a diameter mode of a channel equalizer of each controlled device in the at least one controlled device in the wireless network a tap coefficient in the mode, the sending unit, configured to send a tap coefficient in a diameter mode and a tap coefficient in a multipath mode to a channel equalizer of each controlled device of the at least one controlled device to Corresponding controlled devices, so that each of the controlled devices calculates the first signal receiving strength according to the tap coefficients of the respective channel equalizers in the diameter mode, and according to the respective channel equalizers in the multipath mode The tap coefficient is calculated to obtain the second signal reception strength.
  • the acquiring unit is specifically configured to: broadcast, to the at least one controlled device, the Data, and sending a request message to the at least one controlled device; receiving a response message sent by each of the at least one controlled device, the response message including the controlled device
  • the first signal receives the intensity
  • the acquiring unit is specifically configured to: Transmitting, by the at least one controlled device, the data, and sending a request message to the at least one controlled device; receiving a response message sent by each controlled device of the at least one controlled device, the response The message includes a second signal reception strength of the controlled device.
  • the acquiring unit Specifically, the method is: broadcasting a plurality of data to the at least one controlled device; acquiring a plurality of signal receiving strengths corresponding to each controlled device in the diameter mode, corresponding to each of the controlled devices in the diameter mode.
  • the signal receiving strength is weighted to obtain the first signal receiving strength;
  • the obtaining unit is specifically configured to: broadcast the data to the at least one controlled device a plurality of times; and obtain, each of the controlled devices corresponds to the multipath mode
  • the plurality of signal receiving strengths are weighted by the plurality of signal receiving intensities corresponding to each of the controlled devices in the diameter mode to obtain the second signal receiving strength.
  • the signal receiving intensity ratio of each of the controlled devices is a ratio of a second signal receiving strength of each of the at least one controlled device to a first signal receiving strength; the determining unit is specifically configured to: If the signal reception intensity ratio of each controlled device is smaller than a preset signal reception intensity ratio corresponding to the controlled device, determining that the control device points to the controlled device, otherwise, determining that the control device does not point The controlled device.
  • the determining unit is specifically configured to: determine that the control device only points to one controlled device, determine that the pointed controlled device is a target controlled device; or determine that the control device points to two controlled devices
  • the device prompts the user to select information of the target controlled device, and selects one of the two controlled devices as the target controlled device according to the processing instruction of the user; or determines that the control device points to more than two
  • the controlled device re-executes the method of selecting the controlled device, Or prompting the user to select information of the target controlled device, and selecting one of the controlled devices greater than two as the target controlled device according to the processing instruction of the user.
  • the embodiment of the present invention further provides a control device for selecting a controlled device, which is applied to a wireless network composed of a control device and at least one controlled device, wherein the control device includes short-range wireless a communication chip, a central processing unit, a display device, and an interface, wherein the short-range wireless communication chip and the central processing unit communicate with the interface through a bus; wherein the short-range wireless communication chip is configured to acquire the at least one The first signal receiving intensity of each controlled device in the diameter mode in the controlled mode, and the second signal receiving intensity in the multipath mode;
  • the central processing unit is configured to obtain, according to a first signal receiving strength and a second signal receiving strength of each controlled device of the at least one controlled device, a signal receiving strength ratio of each controlled device;
  • the central processing unit is configured to determine, according to a signal receiving intensity ratio of each controlled device of the at least one controlled device, a preset signal receiving intensity ratio corresponding to the controlled device, to determine whether the control device is pointing Corresponding controlled device;
  • the central processor is configured to determine, from a controlled device pointed by the control device, a target controlled device;
  • the display device is configured to display a control interface of the target controlled device.
  • the short-range wireless communication chip acquires the first signal receiving of each controlled device in the diameter mode in the at least one controlled device
  • the strength, and the second signal reception strength in the multipath mode is also used to acquire a current wireless channel environment model of the wireless network
  • the central processor is configured to generate a location according to the current wireless channel environment model a tap coefficient in a diameter mode and a tap coefficient in a multipath mode of a channel equalizer of each of the at least one controlled device in the wireless network
  • the short-range wireless communication chip Transmitting the tap coefficients of the channel equalizer in the diameter mode and the tap coefficients in the multipath mode to the channel equalizer of each of the at least one controlled device to Corresponding controlled devices, so that each of the controlled devices calculates the first signal receiving strength according to the tap coefficients of the respective channel equalizers in the diameter mode, and according to the respective channel equalizers in the multipath mode
  • the tap coefficient is calculated to obtain the second signal reception strength.
  • the short-range wireless communication chip is configured to acquire the at least one The first signal receiving strength of each controlled device in the diameter mode in the diameter mode includes: the short-range wireless communication chip, configured to broadcast the data to the at least one controlled device, and to the at least one And receiving, by the controlled device, a response message sent by each controlled device of the at least one controlled device, where the response message includes a first signal receiving strength of the controlled device.
  • the short-range wireless communication chip is used for acquiring The second signal receiving strength of the controlled device in the multipath mode of the at least one controlled device, comprising: the short-range wireless communication chip, configured to broadcast the data to the at least one controlled device, And sending a request message to the at least one controlled device; receiving a response message sent by each controlled device of the at least one controlled device, where the response message includes the second of the controlled device Signal reception strength.
  • the short-range wireless communication chip is configured to acquire a first signal of each controlled device in the diameter mode in the at least one controlled device Receiving the strength, comprising: the short-range wireless communication chip, configured to broadcast the data to the at least one controlled device a plurality of times; acquiring a plurality of signal receiving strengths corresponding to each of the controlled devices in the diameter mode, for each of the The plurality of signal receiving strengths of the controlled device are weighted in the diameter mode to obtain the first signal receiving strength; the short-range wireless communication chip is configured to acquire each of the at least one controlled device
  • the second signal receiving strength of the device in the multipath mode includes: the short-range wireless communication chip is configured to broadcast the data to the at least one controlled device; and obtain the corresponding corresponding device in the multipath mode. Multiple signal reception strengths, each of which is charged The device performs weighting processing on the corresponding plurality of signal receiving intensities in the multipath mode to obtain the second signal receiving strength.
  • a signal receiving intensity ratio of each controlled device which is a ratio of a first signal receiving strength to a second signal receiving strength of each of the at least one controlled device; the central processor is configured to use the at least a ratio of a signal receiving intensity of each of the controlled devices to a preset signal receiving intensity corresponding to the controlled device, and determining whether the controlling device points to the corresponding controlled device includes: If the signal receiving intensity ratio of the controlled device is greater than the preset signal receiving intensity ratio of the controlled device, the control device is determined to point to the controlled device, otherwise, the control device is determined not to be directed to the controlled device. Equipment; or
  • the central processor is configured to use Determining whether the control device points to the corresponding controlled device, the signal receiving intensity ratio of each of the at least one controlled device is greater than the preset signal receiving intensity ratio corresponding to the controlled device, including: Determining that the control device is directed to the controlled device, and determining that the control device is not Point to the controlled device.
  • the determining, by the central processing unit, the target controlled device from the controlled device pointed by the control device includes: determining that the control device only points to one controlled device, determining that the pointing is controlled The device is a target controlled device; or it is determined that the control device points to two controlled devices, prompts the user to select information of the target controlled device, and selects one of the two controlled devices according to the processing instruction of the user.
  • the method for selecting the controlled device is re-executed, or the user is referred to
  • the information of the target controlled device is selected, and one of the controlled devices greater than two is selected as the target controlled device according to the processing instruction of the user.
  • the method and the control device for selecting a controlled device provided by the embodiment of the present invention, the control device acquiring the first signal receiving strength of each controlled device in the diameter mode in the at least one controlled device, and the second in the multipath mode Signal receiving strength; obtaining a signal receiving intensity ratio of each controlled device according to a first signal receiving strength and a second signal receiving strength of each controlled device in the at least one controlled device; according to each of the at least one controlled device
  • the ratio of the signal receiving intensity of the controlled device to the preset signal receiving intensity corresponding to the controlled device determines whether the control device points to the corresponding controlled device; and determines the target controlled device from the controlled device pointed to by the control device,
  • the control interface of the target controlled device is displayed on the control device.
  • a control device can automatically identify the controlled device pointed by the control device based on the short-range wireless communication technology, and select the target controlled device.
  • FIG. 1 is a flowchart of a method for selecting a controlled device according to an embodiment of the present invention
  • FIG. 2 is a flowchart of still another method for selecting a controlled device according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a signal transmission path when a control device is directed to a controlled device and a signal reception strength of each path according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of a signal transmission path when a control device does not point to a controlled device and a signal reception strength under each path according to an embodiment of the present invention
  • FIG. 5 is a schematic diagram of a control device for selecting a controlled device according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram of a control device for selecting a controlled device according to an embodiment of the present invention.
  • the specific application scenario of the technical solution provided by the embodiment of the present invention is an indoor environment, such as a home indoor Environment, indoors can be placed a control device and a plurality of controlled devices, wherein the control device and the controlled device are equipped with a short-range wireless communication transceiver module to support the transmission and processing of short-range wireless signals.
  • the control device acts as a master device (Mas ter), and the controlled device acts as a slave device (S lave) to form a wireless network;
  • the control device can be a universal remote controller, an intelligent terminal (eg, a smartphone, a tablet, etc.), and the user control is located in the same wireless
  • the controlled device in the network may be a television set, a set top box, an air conditioner, a digital versatile disc (DVD) machine, an audio device, or the like.
  • the short-distance communication antenna of the control device is a directional antenna, and the main lobe direction of the antenna is the pointing direction of the front end of the control device (ie, the pointing direction), and the short-distance communication antenna of the controlled device is an omnidirectional antenna;
  • a channel equalizer is configured in the short-range wireless communication transceiver module of the device and the controlled device, and each tap coefficient of the channel equalizer is configurable; each controlled device of the at least one controlled device has its own control The data model of the instruction is uploaded to the control device and a control interface is generated within the control device.
  • the short-range wireless communication does not limit specific wireless communication technologies, and may include Bluetooth, Wi-Fi Di rect, Radio Frequency for Consumer Electronics (RF4CE) technology, and ultra-wideband (Ultra-Ra- Wideband, Luo) technology, Zigbee technology, Home Radio Frequency (HomeRF) technology, etc.
  • RF4CE Radio Frequency for Consumer Electronics
  • RF4CE Radio Frequency for Consumer Electronics
  • Luo ultra-wideband
  • Zigbee technology Zigbee technology
  • Home Radio Frequency (HomeRF) technology etc.
  • the control device issues a short-range wireless signal
  • the control device points to the controlled device and the channel model corresponding to the controlled device is different.
  • the signal strength of the diameter component is the largest, and the signal strength of the multipath component is relatively small; when not pointing to the controlled device, since the signal is reflected and blocked by objects such as walls, floors, and home facilities,
  • the signal strength of the received diameter component is not large, or even the diameter component, most of the received signal energy comes from the multipath component. Therefore, it is possible to distinguish whether the control device is directed to the controlled device by this distinction.
  • FIG. 1 is a flowchart of a method for selecting a controlled device according to an embodiment of the present invention.
  • the technical solution provided by the embodiment is applied to a wireless network having a control device and at least one controlled device, specifically, FIG. 1 As shown, this embodiment includes the following execution methods:
  • Step 101 The control device acquires, in the diameter mode, each controlled device of the at least one controlled device The first signal reception strength, and the second signal reception strength in the multipath mode.
  • control device may also acquire a current wireless channel environment model, and generate the at least one controlled device in the wireless network according to the current wireless channel environment model.
  • the obtaining the current wireless channel environment model may use a channel estimation algorithm such as reference signal estimation, maximum likelihood estimation, and blind estimation, and the specific implementation manner does not constitute a limitation of the present invention; the control device generates the tap coefficients of each controlled device. Thereafter, the channel equalizer of the channel equalizer of each of the at least one controlled device in the diameter mode and the tap coefficient in the multipath mode may be respectively sent to the corresponding controlled device.
  • a channel estimation algorithm such as reference signal estimation, maximum likelihood estimation, and blind estimation
  • the tap coefficient of the diameter component in the diameter mode occupies the largest weight, and the weight is much larger than the tap coefficient of the multipath component; in the multipath mode, the tap coefficient of the diameter component has a smaller weight, or the weight is 0, and each multipath
  • the weight of the tap coefficients of the components is large.
  • the specific weight distribution of the tap coefficients can be set according to the indoor wireless channel environment model.
  • the wireless channel environment model includes the multipath fading channel model, the Rayleigh channel fading model caused by noise, and the interference model of other ISM band interference noise, etc.
  • the environment is related to the location of the electronic devices in the room, the location of the indoor furniture facilities, the layout of the rooms, and the radio interference in the residential area. It is time-varying, and the wireless channel environments of different rooms are different.
  • the specific channel equalizer tap coefficients may be set using a channel equalization algorithm such as a zero-forcing algorithm, a minimum mean square error, and a Kalman filter.
  • the specific implementation manner does not constitute a limitation
  • control device can set the same diameter mode and the tap coefficient of the channel equalizer in the multipath mode for different controlled devices, and can also set the tap coefficients of different channel equalizers for different controlled devices.
  • control device After the control device sets the tap coefficients of the channel equalizers of the controlled devices, it can be separately sent to the corresponding controlled device, wherein the tap coefficients of the controlled device in the diameter mode can be sent to the controlled device through the first configuration message. Control the device so that the controlled device is in diameter mode according to the channel equalizer The tap coefficient is calculated to obtain the first signal reception strength.
  • the control device may send the tap coefficient of the controlled device in the multipath mode to the controlled device by using the second configuration message, so that the controlled device calculates the second according to the tap coefficient of the channel equalizer in the multipath mode. Signal reception strength.
  • the process of acquiring the first signal receiving strength of each controlled device in the diameter mode in the at least one controlled device may include: broadcasting data to the at least one controlled device, and reporting the data to the at least one controlled device Sending a request message, the request message is used to instruct the controlled device to read and feed back the signal receiving strength of the device to the control device; and receive the response message sent by the at least one controlled device, the response message
  • a first signal reception strength of the controlled device is included.
  • the first signal receiving strength referred to herein is used to represent the energy of the signal processed by the controlled device to the antenna received by the equalizer after being set to the diameter mode tap coefficient in a unit time, and the measurement index may be signal power, Maximum amplitude of the signal, peak-to-peak value of the signal, etc.
  • the control device configures the channel equalizer of the controlled device in the wireless network to be a tap coefficient in the diameter mode, and sends the signal to each controlled device in the at least one controlled device according to the configured sending and receiving time slot. .
  • each controlled device configures the tap coefficient of the channel equalizer to be the tap coefficient in the diameter mode specified by the control device.
  • the control device broadcasts data to each controlled device, and the data is mainly used to detect the strength of the received signal of the controlled device.
  • the control device sends a request message to each controlled device, and reads the received signal strength of the controlled device to receive the data.
  • the controlled device i receives the request message.
  • the signal strength I Di of the data is sent to the control device.
  • the process of acquiring the second signal receiving strength of each controlled device in the multipath mode in the at least one controlled device may include: broadcasting data to the at least one controlled device, and reporting the data to the at least one controlled device Sending a request message, the request message is used to instruct the controlled device to read and feed back the signal receiving strength of the device to the control device; and receive the response message sent by the at least one controlled device, the response message
  • a second signal reception strength of the controlled device is included.
  • the second signal receiving strength referred to herein is used to represent the energy of the signal processed by the controlled device to the electromagnetic signal received by the antenna in the unit time through the equalizer set to the multipath mode tap coefficient.
  • the target can be the signal power, or the maximum amplitude of the signal, or the peak-to-peak value of the signal. It should be noted that the metric of the second signal receiving strength must be the same as the metric of the first signal receiving strength described above.
  • the control device is configured to be a tap coefficient in the multipath mode of the channel equalizer of the controlled device in the wireless network, and is sent to each controlled device in the at least one controlled device according to the configured sending and receiving time slot.
  • each controlled device configures the tap coefficient of the channel equalizer to be the tap coefficient in the multipath mode specified by the control device.
  • the control device broadcasts data to each controlled device, and the data is mainly used to detect the received signal strength.
  • the control device sends a request message to each controlled device, and reads the received signal strength indication of the received data by the controlled device.
  • the controlled device After receiving the request message sent by the control device, the controlled device i receives the request message. The signal strength of the incoming data is sent to the control device.
  • acquiring the first signal receiving strength of each controlled device in the diameter mode in the at least one controlled device specifically: broadcasting the data to the at least one controlled device multiple times; acquiring each controlled device The plurality of signal receiving intensities corresponding to the diameter mode are weighted by the plurality of signal receiving intensities corresponding to each of the controlled devices in the diameter mode to obtain the first signal receiving strength.
  • Acquiring the second signal receiving strength of each controlled device in the multipath mode specifically: broadcasting multiple times to the at least one controlled device; acquiring multiple signals corresponding to each controlled device in the multipath mode Receive strength, weighting a plurality of signal receiving strengths corresponding to each of the controlled devices in the diameter mode to obtain the second signal receiving strength.
  • control device may repeatedly perform the above operations, and after obtaining the data of the plurality of groups of 1 ⁇ and ⁇ ⁇ ⁇ corresponding to each controlled device, perform weighted averaging processing on the data, thereby avoiding randomization of the channel during testing. Abrupt or strong noise interference causes errors in the test data and improves the reliability of the test data. After the weighted averaging process, the final first signal received intensity I Di and the second signal received intensity ⁇ ⁇ are obtained .
  • Step 102 The control device obtains a signal receiving strength ratio of each controlled device according to a first signal receiving strength and a second signal receiving strength of each controlled device in the at least one controlled device.
  • the definition of how to use can be determined by the user or the developer, but in a practical situation, only one definition can be used.
  • the control device can set the preset signal receiving intensity ratio of the controlled device according to the diameter mode configured for the controlled device i and the tap coefficient of the channel equalizer in the multipath mode.
  • the definition of the received signal strength ratio of the controlled device i is the same, and the preset signal receiving intensity ratio of the controlled device i also has two definitions.
  • the tap coefficients corresponding to the diameter components of the tap coefficients of the channel equalizer in the diameter mode are much larger than the tap coefficients corresponding to the multipath components, and the tap coefficients of the multi-path components tend to be small or even zero;
  • the tap coefficients corresponding to the multipath components are much larger than the tap coefficients corresponding to the diameter components, and the tap coefficients of the diameter components tend to be small or even zero.
  • the preset signal strength ratio Di is proportional to the difference between the diameter mode and the diameter component tap coefficient in the multipath mode. The larger the difference, the larger the value of the preset signal strength ratio Di Similarly, if the second definition is used, the preset signal strength ratio is inversely proportional to the difference between the Di diameter mode and the diameter component tap coefficient in the multipath mode. The larger the difference, the preset signal strength ratio Di The smaller.
  • Step 103 The control device determines, according to a signal receiving intensity ratio of each controlled device of the at least one controlled device, a preset signal receiving intensity ratio corresponding to the controlled device, to determine whether the control device points to a corresponding Control equipment.
  • the preset signal reception intensity ratio is compared with the signal reception intensity ratio calculated in step 102. For the first definition manner described in step 102, if the signal reception intensity ratio is greater than the preset signal reception intensity ratio, the control device is determined to point to the controlled device i; if it is smaller than the preset signal reception intensity ratio, the control device is not determined. Point to the controlled device i; if it is equal to the preset signal receiving intensity ratio, it can be judged that the control device points to the controlled device i, and it can also be judged that the control device does not point to the controlled device
  • the control device i can be set according to specific needs.
  • step 102 if the signal reception intensity ratio is smaller than the preset signal reception intensity ratio, the control device is determined to point to the controlled device i; if it is greater than the preset signal reception intensity ratio, the control device is not determined. Point to the controlled device i; if it is equal to the preset signal receiving intensity ratio, it can be judged that the control device points to the controlled device i, and can also judge that the control device does not point to the controlled device i, and can be set according to specific needs.
  • Step 104 Determine, from a controlled device pointed by the control device, a target controlled device, and display a control interface of the target controlled device on the control device.
  • the determining the target controlled device from the controlled device pointed by the control device includes: determining that the control device only points to one controlled device, determining the pointing When the controlled device is the target controlled device; or when the control device is pointed to the two controlled devices, the user is prompted to select the information of the target controlled device, and the two controlled devices are selected according to the processing instruction of the user. If one of the controlled devices is the target controlled device; or if the control device points to more than two controlled devices, the method for selecting the controlled device is re-executed, or the user is prompted to select the target to be controlled. The information of the device is selected according to the processing instruction of the user, and one of the controlled devices that is greater than two is selected as the target controlled device.
  • control device may automatically pop up the control interface of the target controlled device, so that the user performs corresponding control operations on the controlled device.
  • the control device may prompt the user to select the information of the target controlled device, wherein the prompting manner may be in the control device.
  • the display device displays the form of the operation interface prompting the user, and can also prompt the user to play the voice, or display the text, or display the image, etc., and the user selects which controlled device to control according to the prompt, and the control device can Generating a corresponding processing instruction according to the operation of the user, and selecting a corresponding controlled device as the target controlled device according to the processing instruction, and automatically popping up a control interface of the currently controlled device, so that the user performs corresponding to the controlled device. Control operation.
  • the control device may also according to the priority of each controlled device, the user's preference, and the user's usage habits. Wait for the automatic selection of a target controlled device.
  • step 103 determines that the control device points to more than two controlled devices, it may indicate that the selected device fails to be selected, and the method for selecting the controlled device is re-executed, or the user may be prompted to select the information of the target controlled device.
  • the user selects one of the controlled devices pointed to as the target controlled device.
  • the method of selecting the target controlled device can be determined by the user or the developer.
  • the embodiment of the present invention implements a control device that can determine whether the device points to the controlled device according to the received strength of the signal returned by the controlled device.
  • the user controls the device pointing Which controlled device represents the control device that the user wants to control, so the embodiment of the present invention realizes that the control device is directed to the controlled device to automatically perform the device that the user wants to control based on the short-range wireless communication technology.
  • Identification Select the target controlled device among multiple controlled devices to improve the user experience.
  • FIG. 2 is a flowchart of still another method for selecting a controlled device according to an embodiment of the present invention; the technical solution provided by the embodiment is applied to a wireless network having a control device and at least one controlled device, as shown in FIG. 2, This embodiment includes the following steps:
  • Step 201 The control device determines a sending time slot and a receiving time slot of each controlled device.
  • the control device may configure the clock of each of the at least one controlled device according to its short-distance communication clock, and the short-distance communication clock of the controlled device and the short distance of the control device
  • the communication clocks are kept strictly synchronized, so that the link time slots of the various devices can be unified and synchronized.
  • the control device transmits and receives data packets with each of the at least one controlled device in a manner of multiplexing by Time Division and Duplex (TDD), except for the broadcast message. In the same time slot, the control device can only send data packets to one controlled device or can only receive data packets from one controlled device.
  • TDD Time Division and Duplex
  • Step 202 The control device configures a tap coefficient of the channel equalizer in the diameter mode and a tap coefficient in the multipath mode.
  • the control device in the process of actually constructing a wireless network, the control device And acquiring a current wireless channel environment model, and generating, according to the current wireless channel environment model, a tap coefficient of the channel equalizer of each of the at least one controlled device in the wireless network in a diameter mode
  • the tap coefficient in multipath mode may use a channel estimation algorithm such as reference signal estimation, maximum likelihood estimation, and blind estimation, and the specific implementation manner does not constitute a limitation of the present invention; each of the at least one controlled device is used.
  • the channel equalizer of the controlled device transmits the tap coefficient in the diameter mode and the tap coefficient in the multipath mode to the corresponding controlled device.
  • the tap coefficient of the diameter component in the diameter mode occupies the largest weight, and the weight is much larger than the tap coefficient of the multipath component; in the multipath mode, the tap coefficient of the diameter component has a smaller weight, or the weight is 0, and each multipath
  • the weight of the tap coefficients of the components is large.
  • the specific weight distribution of the tap coefficients can be set according to the indoor wireless channel environment model.
  • the wireless channel environment model includes the multipath fading channel model, the Rayleigh channel fading model caused by noise, and the interference model of other ISM band interference noise, etc.
  • the environment is related to the location of the electronic devices in the room, the location of the indoor furniture facilities, the layout of the rooms, and the radio interference in the residential area. It is time-varying, and the wireless channel environments of different rooms are different.
  • the specific channel equalizer tap coefficients may be set using a channel equalization algorithm such as a zero-forcing algorithm, a minimum mean square error, and a Kalman filter.
  • the specific implementation manner does not constitute a limitation
  • control device can set the same diameter mode and the tap coefficient of the channel equalizer in the multipath mode for different controlled devices, and can also set the tap coefficients of different channel equalizers for different controlled devices.
  • Step 203 The control device sends, to each controlled device, a configuration packet that configures a tap coefficient of the channel equalizer to be a tap coefficient in the direct mode.
  • each controlled device After receiving the tap coefficient configuration message of the channel equalizer, each controlled device configures the tap coefficient of the channel equalizer to be the tap coefficient in the diameter mode specified by the control device, so as to be based on the tap coefficient of the channel equalizer in the diameter mode.
  • the first signal reception intensity in the diameter mode is calculated.
  • Step 204 After the controlled device configures the tap coefficient of the channel equalizer to be a diameter mode, The controlled devices broadcast data and send request messages to each controlled device.
  • each controlled device After receiving the tap coefficient configuration message of the channel equalizer, each controlled device configures the tap coefficient of the channel equalizer to be the tap coefficient in the diameter mode specified by the control device. After the configuration is completed, the control device broadcasts data to each controlled device, and the data is mainly used to detect the received signal strength. At the same time, the control device sends a request message to each controlled device, and reads the signal receiving strength of the controlled device to receive the data.
  • Step 205 Receive a first signal reception strength sent after each controlled device receives the message. After receiving the read signal receiving strength indication instruction sent by the control device, each controlled device sends the signal strength I Di of the received data to the control device.
  • the first signal receiving strength is used to represent the energy of the signal processed by the controlled device to the antenna received by the equalizer after being set to the diameter mode tap coefficient in the unit time, and the measurement index may be the signal power, Maximum amplitude of the signal, peak-to-peak value of the signal, etc.
  • Step 206 Send, to each controlled device, a configuration packet that configures a tap coefficient of the channel equalizer to be a tap coefficient in the multipath mode.
  • Step 207 After the controlled device configures the tap coefficient of the channel equalizer to be the multipath mode, broadcast data to each controlled device, and send a request message to each controlled device.
  • each controlled device After receiving the tap coefficient configuration message of the channel equalizer, each controlled device configures the tap coefficient of the channel equalizer to be the tap coefficient in the multipath mode specified by the control device. After the configuration is completed, the control device broadcasts data to each controlled device, and the data is mainly used to detect the received signal strength. At the same time, the control device sends a request message to each controlled device, which is used to read the received signal strength of the controlled device to receive the data.
  • Step 208 Receive a second signal receiving strength sent after each controlled device receives the message. After receiving the read signal receiving strength indication instruction sent by the control device, each controlled device sends the signal strength ⁇ ⁇ of the received data to the control device.
  • the second signal receiving strength referred to herein is used to represent the energy of the signal processed by the controlled device to the electromagnetic signal received by the antenna in the unit time through the equalizer set to the multipath mode tap coefficient, and the measurement index may be a signal. Power, signal maximum amplitude, signal peak-to-peak, etc., but the metric must be the same as the aforementioned first signal received strength metric.
  • the control device may repeatedly perform steps 205 to 208, and after obtaining the data of multiple groups of 1 ⁇ and ⁇ ⁇ ⁇ corresponding to each controlled device, perform weighted averaging processing on the data, thereby avoiding the channel during the test.
  • the random mutation or strong noise interference causes the error of the test data to be large, and the reliability of the test data is improved.
  • the final first signal received intensity I Di and the second signal received intensity ⁇ ⁇ are obtained .
  • Step 209 Obtain a signal receiving strength ratio of each controlled device according to a first signal receiving strength and a second signal receiving strength of each controlled device in the at least one controlled device.
  • the definition of how to use can be determined by the user or the developer, but in a practical situation, only one definition can be used.
  • the control device may set the preset signal reception intensity ratio of the controlled device according to the diameter mode configured for the controlled device i and the tap coefficient of the channel equalizer in the multipath mode.
  • the definition of the signal reception intensity ratio of the controlled device i is the same, and the preset signal reception intensity ratio of the controlled device i also has two definitions.
  • the tap coefficients corresponding to the diameter components of the tap coefficients of the channel equalizer in the diameter mode are much larger than the tap coefficients corresponding to the multipath components, and the tap coefficients of the multi-path components tend to be small or even zero;
  • the tap coefficients corresponding to the multipath components are much larger than the tap coefficients corresponding to the diameter components, and the tap coefficients of the diameter components tend to be small or even zero.
  • Step 210 Determine, according to a signal receiving intensity ratio of each controlled device, a preset signal receiving intensity ratio corresponding to the controlled device, to determine whether the control device points to a corresponding controlled device.
  • the pointing direction of the control device forms a direct path with the controlled device i, and the path is a line of sight reachable path, that is, there is no occlusion in the middle.
  • the short-distance communication antenna of the control device in the present application is a directional antenna, and the direction of the main lobe is directed to the pointing direction of the control device, the signal strength of the diameter component is the largest in the received signal of the controlled device i, and other multipath components The signal strength is small, the signal transmission path when the control device points to the controlled device and the signal reception strength under each path are shown in FIG. 3. As shown in FIG.
  • the control device does not point to the controlled device i
  • the direction of the main lobe of the short-range communication antenna does not point to the controlled device i, resulting in a lower signal strength of the diameter component of the controlled device to the controlled device, even due to the control device and being controlled
  • There is object obstruction between the devices so that the signal strength of the diameter component of the control device to the controlled device is zero, and the signal emitted by the control device short-distance communication antenna in the direction of the main lobe reaches the controlled device through the reflection of the wall, the ceiling, etc.
  • the path component therefore, the signal strength of the multipath component is large, and the signal transmission path when the control device does not point to the controlled device and the signal reception strength under each path are as shown in FIG.
  • the preset signal reception intensity ratio is compared with the signal reception intensity ratio calculated in step 102.
  • the control device is determined to point to the controlled device i; if it is smaller than the preset signal reception intensity ratio, the control device is not determined Point to the controlled device i; if it is equal to the preset signal receiving intensity ratio, it can be judged that the control device points to the controlled device i, and can also judge that the control device does not point to the controlled device i, and can be set according to specific needs.
  • step 102 if the signal reception intensity ratio is smaller than the preset signal reception intensity ratio, the control device is determined to point to the controlled device i; if it is greater than the preset signal reception intensity ratio, the control device is not determined. Point to the controlled device i; if it is equal to the preset signal receiving intensity ratio, it can be judged that the control device points to the controlled device i, and can also judge that the control device does not point to the controlled device i, and can be set according to specific needs.
  • Step 211 Determine, from a controlled device pointed by the control device, a target controlled device, and display a control interface of the target controlled device on the control device.
  • Determining the target controlled device from the controlled device pointed by the control device according to the comparison result of step 210 comprising: determining that the control device only points to one controlled device, determining that the pointing is controlled The device is the target controlled device; or when the control device is pointed to the two controlled devices, the user is prompted to select the information of the target controlled device, and the two controlled devices are selected according to the processing instruction of the user.
  • a controlled device is used as the target controlled device; or when it is determined that the control device points to more than two controlled devices, the method for selecting the controlled device is re-executed, or the user is prompted to select the target controlled device. And selecting, according to the processing instruction of the user, one of the controlled devices that is greater than two devices as the target controlled device.
  • the control device can automatically pop up the item Marking the control interface of the controlled device, so that the user performs corresponding control operations on the controlled device; when it is determined that the control device points to two controlled devices, for example, determining that the control device points to both the set top box and the television set, the control device The user may be prompted to select the information of the target controlled device, wherein the prompting manner may be to prompt the user in the form of displaying the operation interface on the display device of the control device, or to play the voice, or display the text, or display the image, etc. for the control device.
  • the user is prompted to select which controlled device to control according to the prompt, and the control device may generate a corresponding processing instruction according to the operation of the user, and select a corresponding controlled device as the target controlled device according to the processing instruction, and The control interface of the currently controlled device is automatically popped up, so that the user performs corresponding control operations on the controlled device.
  • the control device may automatically select a target controlled device according to the priority of each controlled device, the user's preference, the user's usage habits, and the like.
  • step 210 If it is determined in step 210 that the control device points to more than two controlled devices, the method of selecting the controlled device fails, re-executing the method for selecting the controlled device, or prompting the user to select the information of the target controlled device, The user selects one of the controlled devices pointed to as the target controlled device.
  • the method of selecting the target controlled device can be determined by the user or the developer.
  • the embodiment of the present invention implements a control device that can determine whether the device points to the controlled device according to the received strength of the signal returned by the controlled device.
  • the user controls the device pointing Which controlled device represents the control device that the user wants to control, so the embodiment of the present invention realizes that the control device is directed to the controlled device to automatically perform the device that the user wants to control based on the short-range wireless communication technology.
  • Identification Select the target controlled device among multiple controlled devices to improve the user experience.
  • the embodiment of the present invention further provides a control device for selecting a controlled device, which is applied to a wireless network composed of a control device and at least one controlled device.
  • FIG. 5 is a selection of the selected embodiment of the present invention.
  • a schematic diagram of a control device of the control device, as shown in the figure, the controlled device provided in this embodiment includes:
  • the acquiring unit 501 is configured to acquire a first signal receiving strength of each controlled device in the diameter mode of the at least one controlled device, and a second signal receiving strength in the multipath mode.
  • the acquiring unit 501 is specifically configured to: broadcast the data to the at least one controlled device, and send a request message to the at least one controlled device separately; receive each controlled device in the at least one controlled device And a response message sent, where the response message includes a first signal receiving strength of the controlled device.
  • the first signal receiving strength referred to herein is used to represent the energy of the signal processed by the controlled device to the antenna received by the equalizer after being set to the diameter mode tap coefficient in a unit time, and the measurement index may be signal power, Maximum amplitude of the signal, peak-to-peak value of the signal, etc.
  • the control device configures the channel equalizer of the controlled device in the wireless network to be a tap coefficient in the diameter mode, and sends the signal to the controlled device in the at least one controlled device according to the configured sending and receiving time slot. .
  • each controlled device configures the tap coefficient of the channel equalizer to be the tap coefficient in the diameter mode specified by the control device.
  • the control device broadcasts data to each controlled device, and the data is mainly used to detect the strength of the received signal of the controlled device.
  • the control device sends a request message to each controlled device, and reads the received signal strength of the controlled device to receive the data.
  • the controlled device i receives the request message.
  • the signal strength I Di of the data is sent to the control device.
  • the acquiring unit 501 is specifically configured to: broadcast data to the at least one controlled device, and send a request message to the at least one controlled device; and receive, by each controlled device, the at least one controlled device And responding to the message, the response message includes a second signal receiving strength of the controlled device.
  • the second signal receiving strength referred to herein is used to represent the energy of the signal processed by the controlled device to the electromagnetic signal received by the antenna in the unit time through the equalizer set to the multipath mode tap coefficient, and the measurement index may be the signal power. , signal maximum amplitude, signal peak-to-peak, etc.
  • the metric must be the same as the metric for the first signal received strength described above.
  • the control device is configured to be a tap coefficient in the multipath mode of the channel equalizer of the controlled device in the piconet, and is sent to each controlled device in the at least one controlled device according to the configured sending and receiving time slot.
  • Each controlled device configures its letter after receiving the tap coefficient configuration message of the channel equalizer.
  • the tap coefficient of the channel equalizer is the tap coefficient in the multipath mode specified by the control device.
  • the control device broadcasts data to each controlled device, and the data is mainly used to detect the strength of the received signal of the controlled device.
  • the control device sends a request message to each controlled device, and reads the received signal strength of the controlled device to receive the data.
  • the controlled device After receiving the request message sent by the control device, the controlled device i receives the request message.
  • the signal strength of the data ⁇ ⁇ ⁇ is sent to the control device.
  • the acquiring unit 501 is specifically configured to: broadcast a plurality of data to the at least one controlled device; acquire a plurality of signal receiving strengths corresponding to each controlled device in the diameter mode, and the each controlled device is in the diameter mode. The corresponding plurality of signal reception intensities are weighted to obtain the first signal reception strength.
  • the acquiring unit 501 is specifically configured to: broadcast a plurality of data to the at least one controlled device; acquire a plurality of signal receiving strengths corresponding to each controlled device in the multipath mode, and use the diameter mode of each controlled device The corresponding plurality of signal reception intensities are weighted to obtain the second signal reception strength.
  • control device may repeatedly perform the foregoing operations, and after obtaining multiple sets of 1 ⁇ and ⁇ ⁇ ⁇ data corresponding to each controlled device, performing weighted averaging processing on the data, thereby avoiding channel due to testing Random errors or strong noise interference lead to large errors in the test data and improve the reliability of the test data. After the weighted averaging process, the final first signal received intensity I Di and the second signal received intensity ⁇ ⁇ are obtained .
  • the calculating unit 502 is configured to obtain, according to the first signal receiving strength and the second signal receiving strength of each controlled device of the at least one controlled device, a signal receiving strength ratio of each controlled device.
  • the ratio of the second signal receiving strength ⁇ ⁇ of the controlled device i to the first signal receiving intensity 1 «, that is, the signal receiving intensity ratio of the controlled device i is A: ⁇ .
  • the definition of how to use can be determined by the user or the developer, but in a practical situation, only one definition can be used.
  • the control device may set the preset signal reception intensity ratio of the controlled device according to the diameter mode configured for the controlled device i and the tap coefficient of the channel equalizer in the multipath mode.
  • the definition of the signal reception intensity ratio of the controlled device i is the same, and the preset signal reception intensity ratio of the controlled device i also has two definitions.
  • the tap coefficients corresponding to the diameter components of the tap coefficients of the channel equalizer in the diameter mode are much larger than the tap coefficients corresponding to the multipath components, and the tap coefficients of the multi-path components tend to be small or even zero;
  • the tap coefficients corresponding to the multipath components are much larger than the tap coefficients corresponding to the diameter components, and the tap coefficients of the diameter components tend to be small or even zero. Therefore, if the first definition is used, the preset signal strength ratio Di is proportional to the difference between the diameter mode and the diameter component tap coefficient in the multipath mode.
  • the preset signal strength ratio is inversely proportional to the difference between the Di diameter mode and the diameter component tap coefficient in the multipath mode. The larger the difference, the preset signal strength ratio Di The smaller.
  • the determining unit 503 is configured to determine, according to a signal receiving intensity ratio of each controlled device of the at least one controlled device, a preset signal receiving intensity ratio corresponding to the controlled device, to determine whether the control device points to a corresponding Controlled equipment.
  • the determining unit 503 is specifically configured to: The signal receiving intensity ratio of each controlled device is greater than a preset signal receiving intensity ratio of the controlled device, and then determining that the control device is directed to the controlled device; if less than the preset signal receiving intensity ratio, It is judged that the control device does not point to the controlled device; if it is equal to the preset signal receiving intensity ratio, it can be judged that the control device points to the controlled device, and can also judge that the control device does not point to the controlled device, and can be set according to specific needs.
  • the determining unit 503 is specifically configured to: The signal receiving intensity ratio of each controlled device is smaller than a preset signal receiving intensity ratio corresponding to the controlled device, and then determining that the control device is directed to the controlled device; if it is greater than a preset signal receiving intensity ratio, Judging that the control device does not point to the controlled device; if it is equal to the preset signal receiving The intensity ratio can be judged that the control device points to the controlled device, or the control device does not point to the controlled device, and can be set according to specific needs.
  • the determining unit 504 is configured to determine, from a controlled device pointed by the control device, a target controlled device, and display a control interface of the target controlled device on the control device.
  • the determining unit 504 is specifically configured to: determine that the control device only points to one controlled device, determine that the pointed controlled device is the target controlled device; or determine that the control device points to two controlled devices, The user prompts to select information of the target controlled device, and selects one of the two controlled devices as the target controlled device according to the processing instruction of the user; or determines that the control device points to more than two Controlling the device, re-executing the method for selecting the controlled device, or prompting the user to select information of the target controlled device, and selecting one of the controlled devices greater than two according to the processing instruction of the user to be controlled
  • the device is the target controlled device.
  • the control device may automatically pop up a control interface of the target controlled device, so that the user performs corresponding control operations on the controlled device;
  • the control device may prompt the user to select the information of the target controlled device, wherein the prompting manner may be on the display device of the control device.
  • the form of the display operation interface prompts the user, and can also prompt the user to play the voice, or display the text, or display the image, etc., and the user selects which controlled device to control according to the prompt, and the control device can be based on the user's
  • the operation generates a corresponding processing instruction, and selects a corresponding controlled device as the target controlled device according to the processing instruction, and automatically pops up a control interface of the currently controlled device, so that the user performs corresponding control operations on the controlled device.
  • the control device can automatically select a target controlled device according to the priority of each controlled device, the user's preference, the user's usage habits, and the like.
  • the determining unit 503 determines that the control device points to more than two controlled devices, it may indicate that the selected device fails to be selected, re-executes the method for selecting the controlled device, or may prompt the user to select the information of the target controlled device.
  • the user selects one of the controlled devices pointed to by the user. Controlled equipment for the target.
  • the method of selecting the target controlled device can be determined by the user or the developer.
  • the control device provided by the embodiment of the present invention further includes a generating unit 505 and a sending unit 506: the acquiring unit 501 is further configured to acquire a current wireless channel environment model of the wireless network, and the generating unit 505 is configured to Generating, in the current wireless channel environment model, a tap coefficient in a diameter mode and a tap coefficient in a multipath mode of a channel equalizer of each of the at least one controlled device in the wireless network; a sending unit 506, configured to send a tap coefficient in a diameter mode and a tap coefficient in a multipath mode of a channel equalizer of each controlled device of the at least one controlled device to a corresponding Controlled devices, such that each of the controlled devices calculates the first signal reception strength according to a tap coefficient of the respective channel equalizer in the diameter mode, and the tap according to the respective channel equalizer in the multipath mode The coefficient is calculated to obtain the second signal reception strength.
  • the control device may also acquire a current wireless channel environment model, and generate the at least one controlled device in the wireless network according to the current wireless channel environment model.
  • the tap coefficients of the channel equalizer of each controlled device in the diameter mode and the tap coefficients in the multipath mode, wherein obtaining the current wireless channel environment model may use reference signal estimation, maximum likelihood estimation, blind estimation
  • An equal channel estimation algorithm the specific implementation manner thereof does not constitute a limitation of the present invention; a tap coefficient of a channel equalizer of each of the at least one controlled device in a diameter mode and a tap coefficient in a multipath mode Send to the corresponding controlled device separately.
  • the tap coefficient of the diameter component in the diameter mode occupies the largest weight, and the weight is much larger than the tap coefficient of the multipath component; in the multipath mode, the tap coefficient of the diameter component has a smaller weight, or the weight is 0, and each multipath The weight of the tap coefficients of the components is large.
  • the specific weight distribution of the tap coefficients can be set according to the indoor wireless channel environment model.
  • the wireless channel environment model includes the multipath fading channel model, the Rayleigh channel fading model caused by noise, and the interference model of other I SM band interference noise.
  • the channel environment and the location of the indoor electronic devices, the location of the indoor furniture facilities, the room The pattern and the radio interference situation of the residential area are all related, and it is time-varying, and the corresponding wireless channel environments of different rooms are different.
  • control device can set the same diameter mode and the tap coefficient of the channel equalizer in the multipath mode for different controlled devices, and can also set the tap coefficients of different channel equalizers for different controlled devices.
  • the embodiment of the present invention implements a control device that can determine whether the device points to the controlled device according to the received strength of the signal returned by the controlled device.
  • the user controls the device pointing Which controlled device represents the control device that the user wants to control, so the embodiment of the present invention realizes that the control device is directed to the controlled device to automatically perform the device that the user wants to control based on the short-range wireless communication technology.
  • Identification Select the target controlled device among multiple controlled devices to improve the user experience.
  • FIG. 6 is a schematic diagram of a control device for selecting a controlled device according to an embodiment of the present invention.
  • the control device provided by the embodiment includes a short-range wireless communication chip 601, a central processing unit 602, an interface 603, and a display device. 606, wherein the short-range wireless communication chip 601 and the central processing unit 602 communicate with each other through the bus 604 and the interface 603.
  • the short-range wireless communication chip 601 integrates short-range wireless communication transceiver antennas, channel equalizers, and even a short-range wireless communication chip processor.
  • the control device provided by the embodiment of the present invention may further include a memory 605 for storing the program code and transmitting the program code to the central processing unit.
  • the memory may include a volatile memory (English: volatile memory), such as a random access memory (English: random-access memory, abbreviation: RAM); the memory may also include a non-volatile memory (English: non-volat i le memory) ), such as read-only memory (English: read-only memory, abbreviation: ROM), flash memory (English: flash memory), hard disk (English: harddisk drive, abbreviation: HDD) or solid state drive (English: solid-state drive , Abbreviation: SSD); The memory may also include a combination of the above types of memories.
  • Memory 605 is coupled to central processor 602 and interface 603 via bus 604.
  • a short-range wireless communication chip 601 configured to acquire a first signal receiving strength of each controlled device in the diameter mode of the at least one controlled device, and a second signal receiving strength in the multipath mode;
  • the central processing unit 602 is configured to obtain, according to a first signal receiving strength and a second signal receiving strength of each controlled device of the at least one controlled device, a signal receiving strength ratio of each controlled device.
  • the central processing unit 602 is configured to determine, according to a signal receiving intensity ratio of each controlled device of the at least one controlled device, a preset signal receiving intensity ratio corresponding to the controlled device, to determine whether the control device is Point to the corresponding controlled device;
  • the central processing unit 602 is configured to determine, from a controlled device pointed by the control device, a target controlled device;
  • the display device 606 is configured to display a control interface of the target controlled device.
  • the short-range wireless communication chip 601 acquires the first signal receiving strength of each controlled device in the diameter mode in the at least one controlled device, and before the second signal receiving strength in the multi-path mode, And being used to acquire a current wireless channel environment model of the wireless network, where the central processor 602 is configured to generate, according to the current wireless channel environment model, the at least one controlled device in the wireless network.
  • a tap coefficient of a channel equalizer of each controlled device in a diameter mode and a tap coefficient in a multipath mode configured to control each of the at least one controlled device
  • the tap coefficients of the channel equalizer of the device in the diameter mode and the tap coefficients in the multipath mode are respectively sent to the corresponding controlled devices, so that each of the controlled devices is tapped according to the respective channel equalizer in the diameter mode.
  • Calculating the coefficient of the first signal, and calculating the tap coefficients according to respective channel equalizers in the multipath mode Receiving a second signal strength.
  • the first signal receiving strength is used to represent the energy of the signal processed by the controlled device to the antenna received by the equalizer after being set to the diameter mode tap coefficient in the unit time, and the measurement index may be the signal power and the signal maximum. Amplitude, signal peak-to-peak, etc.; second signal reception is strong The degree is used to represent the energy of the signal processed by the controlled device to the electromagnetic signal received by the controlled unit through the equalizer set to the multipath mode tap coefficient.
  • the measurement index can be the signal power, the maximum amplitude of the signal, and the signal peak. - Peaks, etc.
  • the measure of the received strength of the second signal must be the same as the measure of the received strength of the first signal described above.
  • the short-range wireless communication chip 601 is configured to acquire a first signal receiving strength of each controlled device in the diameter mode of the at least one controlled device, including: a short-range wireless communication chip, configured to And the at least one controlled device broadcasts the data, and sends a request message to the at least one controlled device; and receives a response message sent by each controlled device of the at least one controlled device, the response report
  • the text includes a first signal reception strength of the controlled device.
  • the short-range wireless communication chip 601 is configured to acquire the second signal receiving strength of each of the at least one controlled device in the multipath mode, including: the short-range wireless communication chip 601, Broadcasting the data to the at least one controlled device, and respectively transmitting a request message to the at least one controlled device; receiving a response message sent by each controlled device of the at least one controlled device, The response message includes a second signal reception strength of the controlled device.
  • the short-range wireless communication chip is configured to acquire a first signal receiving strength of each controlled device in the diameter mode of the at least one controlled device, including: the short-range wireless communication chip, used for The at least one controlled device broadcasts the data multiple times; acquires a plurality of signal receiving strengths corresponding to each controlled device in the diameter mode, and weights the received signal strengths of the plurality of signals corresponding to each controlled device in the diameter mode Processing, obtaining the first signal receiving strength.
  • the short-range wireless communication chip 601 is configured to acquire a second signal receiving strength of each controlled device in the multi-path mode of the at least one controlled device, including: the short-range wireless communication chip is configured to At least one controlled device broadcasts a plurality of data; obtaining a plurality of signal receiving strengths corresponding to each controlled device in the multipath mode, and performing, for each of the controlled devices, a plurality of signal receiving strengths corresponding to the multipath mode Weighting processing to obtain the second signal reception strength.
  • control device may repeatedly perform the above operations, and acquire signal receiving intensity data in multiple sets of diameter modes corresponding to each controlled device and signal receiving strength in multiple sets of multipath modes. After the data, the data is weighted and averaged, thereby avoiding large errors in the test data due to random mutation of the channel or strong noise interference during the test, and improving the reliability of the test data. After the weighted averaging process, the final first signal reception intensity and the second signal reception intensity are obtained.
  • the signal receiving intensity ratio has two definition manners: one is that the signal receiving intensity ratio is the ratio of the first signal receiving strength of the controlled device to the second signal receiving strength, that is, The signal receiving intensity ratio of the control device; the other definition manner is that the signal receiving intensity ratio is the ratio of the second signal receiving intensity of the controlled device to the first signal receiving intensity, that is, the signal of the controlled device can only be used under actual conditions.
  • the central processing unit 602 is configured to: Determining whether the control device points to the corresponding controlled device according to the signal receiving intensity ratio of each of the at least one controlled device and the preset signal receiving intensity ratio corresponding to the controlled device includes: If the signal reception intensity ratio of each controlled device is greater than a preset signal reception intensity ratio of the controlled device, determining that the control device points to the controlled device, otherwise, determining that the control device does not point The controlled device;
  • the central processing unit 602 is configured to Determining whether the control device points to the corresponding controlled device, the signal receiving intensity ratio of each of the at least one controlled device is greater than the preset signal receiving intensity ratio corresponding to the controlled device, including: Determining that the control device is directed to the controlled device, and determining that the control device is not Point to the controlled device.
  • the central processing unit 602 is configured to determine, from the controlled device pointed by the control device, the target controlled device, including: determining that the control device only points to one controlled device, determining The controlled device pointed to is the target controlled device; or determining that the control device points to two controlled devices, prompting the user to select information of the target controlled device, and selecting the two according to the processing instruction of the user If one of the controlled devices is the target controlled device; or if the control device points to more than two controlled devices, the method for selecting the controlled device is re-executed, or the user is prompted to select the target.
  • the information of the controlled device selects one of the controlled devices that is greater than two as the target controlled device according to the processing instruction of the user.
  • the control device may automatically pop up the control interface of the target controlled device, so that the user performs corresponding control operations on the controlled device; when it is determined that the control device points to two
  • the control device may prompt the user to select the information of the target controlled device, wherein the prompting manner may be the form of displaying the operation interface on the display device of the control device. The user is prompted to play the voice, or display text, or display an image, etc., to prompt the user, and the user selects which controlled device to control according to the prompt, and the control device can generate corresponding processing according to the user's operation.
  • the instruction selects the corresponding controlled device as the target controlled device, and automatically pops up the control interface of the currently controlled device, so that the user performs corresponding control operations on the controlled device.
  • the control device can automatically select a target controlled device according to the priority of each controlled device, the user's preference, the user's usage habits, and the like.
  • the method for selecting the controlled device is re-executed, or the user may be prompted to select the information of the target controlled device.
  • One of the controlled devices pointed to is selected as the target controlled device.
  • the method of selecting the target controlled device can be determined by the user or the developer.
  • the embodiment of the present invention implements a control device that can determine whether the device points to the controlled device according to the received strength of the signal returned by the controlled device.
  • the user controls the device pointing Which controlled device represents the control device that the user wants to control, so the embodiment of the present invention determines whether the control device is directed to be controlled.
  • the device realizes the automatic identification of the device that the user wants to control based on the short-range wireless communication technology, and selects the target controlled device among the plurality of controlled devices to improve the user experience.
  • An embodiment of the present invention further provides a system for selecting a controlled device, wherein the system includes the foregoing method for selecting a controlled device, including a control device for selecting a controlled device as shown in FIG. 5, and at least one controlled device. device.
  • the control device acquires a first signal receiving strength of each controlled device in the diameter mode in the wireless network, and a second signal receiving strength in the multipath mode; receiving according to the first signal of each controlled device Intensity and the second signal receiving intensity, obtaining a signal receiving intensity ratio of each controlled device; determining the control according to a signal receiving intensity ratio of each controlled device and a preset signal receiving intensity ratio corresponding to the controlled device Whether the device points to the corresponding controlled device; from the controlled device pointed to by the control device, the target controlled device is determined, and the control interface of the target controlled device is displayed on the control device.
  • implementing a control device can judge whether the device points to the controlled device according to the received strength of the signal returned by the controlled device, according to the operating habits of the general people using the remote controller to control the device
  • the user control device refers to which controlled device, which represents which controlled device the user wants to control. Therefore, the embodiment of the present invention realizes that the user is automatically directed to the user based on the short-range wireless communication technology by determining whether the control device points to the controlled device.
  • the device to be controlled is identified, and the target controlled device is selected among the plurality of controlled devices to improve the user experience.
  • An embodiment of the present invention further provides a system for selecting a controlled device, wherein the system includes the foregoing method for selecting a controlled device, including a control device for selecting a controlled device as shown in FIG. 6, and at least one controlled device. device.
  • the control device acquires a first signal receiving strength of each controlled device in the diameter mode in the wireless network, and a second signal receiving strength in the multipath mode; receiving according to the first signal of each controlled device Intensity and the second signal receiving intensity, obtaining a signal receiving intensity ratio of each controlled device; determining the control according to a signal receiving intensity ratio of each controlled device and a preset signal receiving intensity ratio corresponding to the controlled device Whether the device points to the corresponding controlled device; from the controlled device pointed to by the control device, the target controlled device is determined, and the control interface of the target controlled device is displayed on the control device.
  • a control device can determine whether the control device points to the controlled device according to the received strength of the signal returned by the controlled device. According to the operating habits of the general control device using the remote controller, which control device the user handheld control device points to represents The user device wants to control which device is controlled. Therefore, the embodiment of the present invention realizes that the device that the user wants to control is automatically identified based on the short-range wireless communication technology by determining whether the control device points to the controlled device, and the plurality of controlled devices are Select the target controlled device to improve the user experience.
  • RAM random access memory
  • ROM read-only memory
  • EEPROM electrically programmable ROM
  • EEPROM electrically erasable programmable ROM
  • registers hard disk, removable disk, CD-ROM, or technical field Any other form of storage medium known.

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Abstract

本发明涉及一种选择被控设备的方法和控制设备。该方法包括:控制设备获取至少一个被控设备中每个被控设备在直径模式下接收数据的第一信号接收强度,以及在多径模式下接收数据的第二信号接收强度;计算每个被控设备的第一信号接收强度与第二信号接收强度的比值,得到每个被控设备的信号接收强度比;根据每个被控设备的信号接收强度比与所述被控设备对应的预设信号接收强度比,判断控制设备是否指向对应的被控设备;确定控制设备所指向的目标被控设备,在控制设备上显示目标被控设备的控制界面。本发明实现了控制设备可以自动对用户想要控制的被控设备进行识别和选择。

Description

选择被控设备的方法和控制设备 技术械
本发明涉及无线网络应用领域, 尤其涉及一种选择被控设备的方法和控 制设备。 背景技术
随着家用电器设备数量和种类的增多以及实现的功能变得原来越强大, 对这些家用电器和消费电子设备的控制也变得越来复杂。 一般, 电视机、 音 响设备、 空调等家用电器都会配备专用的遥控器, 但是随着家庭智能化的不 断增强, 各种家用电器设备之间的交互也会变得越来越普遍, 因此产生了用 一台控制设备就可以控制所有家用电器设备的需求, 而在控制设备之前, 就 需要首先选中被控设备。
目前进行设备控制和数据传输的信号载体包括光通信和无线电磁波通信 两种, 其中最典型的光通信应用为红外线数据协会(英文: Infrared Data As soc ia t ion, 缩写 I rDA)技术, 被广泛应用于各种家用电器的遥控器中; 而 依靠无线电磁波作为通信介质的典型应用包括无线保真 (英文: Wi reles s Fidel i ty, 缩写: Wi_Fi )和蓝牙两种通信技术。 在选择被控设备方面, I rDA 技术以其指向性好的特点具有先天优势,但是由于 I rDA技术是单工方式传输、 承载的信息量少以及传输距离受限, 因此不太适用于结构功能复杂的电子设 备的选择, 而 Wi-F i、 蓝牙等无线电磁波信号不是定向的发送和接收信号, 因 此需要用户自行选择被控设备, 这在家用电器设备较多的环境中会导致用户 体验的下降。 发明内容
本发明实施例提供了一种选择被控设备的方法和控制设备, 以实现对控 制设备所指向的被控设备进行自动识别, 并选出目标被控设备。
第一方面, 本发明实施例提供了一种选择被控设备的方法, 应用于一个 控制设备和至少一个被控设备组成的无线网络中, 控制设备执行以下方法: 获取所述至少一个被控设备中每个被控设备在直径模式下的第一信号接 收强度, 以及在多径模式下的第二信号接收强度;
根据所述至少一个被控设备中每个被控设备的第一信号接收强度与第二 信号接收强度, 得到所述每个被控设备的信号接收强度比;
根据所述至少一个被控设备中的每个被控设备的信号接收强度比与所述 被控设备对应的预设信号接收强度比, 判断所述控制设备是否指向对应的被 控设备;
从所述控制设备所指向的被控设备中, 确定目标被控设备, 在所述控制 设备上显示所述目标被控设备的控制界面。
根据第一方面, 在第一方面的第一种可能的实现方式中, 所述获取所述 至少一个被控设备中每个被控设备在直径模式下的第一信号接收强度, 以及 在多径模式下的第二信号接收强度之前还包括: 获取所述无线网络的当前无 线信道环境模型; 根据所述当前无线信道环境模型, 生成所述无线网络中所 述至少一个被控设备中每个被控设备的信道均衡器在直径模式下的抽头系数 和多径模式下的抽头系数; 将所述至少一个被控设备中的每个被控设备的信 道均衡器在直径模式下的抽头系数和多径模式下的抽头系数分别发送至对应 的被控设备, 以使得所述每个被控设备根据各自的信道均衡器在直径模式下 的抽头系数计算得到所述第一信号接收强度, 和根据各自的信道均衡器在多 径模式下的抽头系数计算得到所述第二信号接收强度。
根据第一方面或者第一方面的第一种可能的实现方式, 在第一方面的第 二种可能的实现方式中, 所述获取所述至少一个被控设备中每个被控设备在 直径模式下的第一信号接收强度, 包括: 向所述至少一个被控设备广播数据, 并且向所述至少一个被控设备中的每个被控设备发送请求报文; 接收所述至 少一个被控设备中的每个被控设备发送的响应 文, 所述响应^艮文包含所述 被控设备的第一信号接收强度。
根据第一方面以及第一方面的第一种、 第二种可能的实现方式中的任意 一种, 在第一方面的第三种可能的实现方式中, 所述获取所述至少一个被控 设备中每个被控设备在多径模式下的第二信号接收强度, 包括: 向所述至少 一个被控设备广播数据, 并且向所述至少一个被控设备中的每个被控设备发 送请求报文; 接收所述至少一个被控设备中的每个被控设备发送的响应报文, 所述响应报文包含所述被控设备的第二信号接收强度。
根据第一方面, 在第一方面的第四种可能的实现方式中, 所述获取所述 至少一个被控设备中每个被控设备在直径模式下的第一信号接收强度, 包括: 向所述至少一个被控设备广播多次数据; 获取每个被控设备在直径模式下对 应的多个信号接收强度, 对所述每个被控设备在直径模式下对应的多个信号 接收强度进行加权处理, 得到所述第一信号接收强度; 所述获取所述至少一 个被控设备中每个被控设备在多径模式下的第二信号接收强度, 包括: 向所 述至少一个被控设备广播多次数据; 获取每个被控设备在多径模式下对应的 多个信号接收强度, 对所述每个被控设备在直径模式下对应的多个信号接收 强度进行加权处理, 得到所述第二信号接收强度。 居第一方面以及第一方面的第一种、 第二种、 第三种、 第四种、 第五 种可能的实现方式中的任意一种, 在第一方面的第五种可能的实现方式中, 所述每个被控设备的信号接收强度比, 为所述至少一个被控设备中每个被控 设备的第一信号接收强度与第二信号接收强度的比值; 所述根据所述至少一 个被控设备中的每个被控设备的信号接收强度比与所述被控设备对应的预设 信号接收强度比, 判断所述控制设备是否指向对应的被控设备, 包括: 如果 所述每个被控设备的信号接收强度比大于所述被控设备对应的预设信号接收 强度比, 则判断所述控制设备指向所述被控设备, 否则, 判断所述控制设备 不指向所述被控设备; 或者
所述每个被控设备的信号接收强度比, 为所述至少一个被控设备中每个 被控设备的第二信号接收强度与第一信号接收强度的比值; 所述根据所述至 少一个被控设备中的每个被控设备的信号接收强度比与所述被控设备对应的 预设信号接收强度比, 判断所述控制设备是否指向对应的被控设备, 包括: 如果所述每个被控设备的信号接收强度比小于所述被控设备对应的预设信号 接收强度比, 则判断所述控制设备指向所述被控设备, 否则, 判断所述控制 设备不指向所述被控设备。
居第一方面以及第一方面的第一种、 第二种、 第三种、 第四种、 第五 种可能的实现方式中的任意一种, 在第一方面的第六种可能的实现方式中, 所述从所述控制设备所指向的被控设备中, 确定目标被控设备, 包括: 判断 出所述控制设备只指向一个被控设备, 则确定所述指向的被控设备为目标被 控设备; 或者判断出所述控制设备指向两个被控设备, 向用户提示选择目标 被控设备的信息, 根据所述用户的处理指令选择所述两个被控设备中的一个 被控设备作为目标被控设备; 或者判断出所述控制设备指向大于两个的被控 设备, 则重新执行所述的选择被控设备的方法, 或向用户提示选择目标被控 设备的信息, 根据所述用户的处理指令选择所述大于两个的被控设备中的一 个被控设备作为目标被控设备。
第二方面, 本发明实施例提供了一种选择被控设备的控制设备, 应用于 一个控制设备和至少一个被控设备组成的无线网络中, 该控制设备包括: 获取单元, 用于获取所述至少一个被控设备中每个被控设备在直径模式 下的第一信号接收强度, 以及在多径模式下的第二信号接收强度;
计算单元, 用于根据所述至少一个被控设备中每个被控设备的第一信号 接收强度与第二信号接收强度, 得到所述每个被控设备的信号接收强度比; 判断单元, 用于根据所述至少一个被控设备中的每个被控设备的信号接 收强度比与所述被控设备对应的预设信号接收强度比, 判断所述控制设备是 否指向对应的被控设备;
确定单元, 用于从所述控制设备所指向的被控设备中, 确定目标被控设 备, 在所述控制设备上显示所述目标被控设备的控制界面。
根据第二方面, 在第二方面的第一种可能的实现方式中, 所述控制设备 还包括生成单元、 发送单元: 所述获取单元, 还用于获取所述无线网络的当 前无线信道环境模型; 所述生成单元, 用于根据所述当前无线信道环境模型, 生成所述无线网络中所述至少一个被控设备中每个被控设备的信道均衡器在 直径模式下的抽头系数和多径模式下的抽头系数; 所述发送单元, 用于将所 述至少一个被控设备中的每个被控设备的信道均衡器在直径模式下的抽头系 数和多径模式下的抽头系数分别发送至对应的被控设备, 以使得所述每个被 控设备根据各自的信道均衡器在直径模式下的抽头系数计算得到所述第一信 号接收强度, 和根据各自的信道均衡器在多径模式下的抽头系数计算得到所 述第二信号接收强度。
根据第二方面或者第二方面的第一种可能的实现方式, 在第二方面的第 二种可能的实现方式中, 所述获取单元具体用于: 向所述至少一个被控设备 广播所述数据, 并且向所述至少一个被控设备分别发送请求报文; 接收所述 至少一个被控设备中的每个被控设备发送的响应报文, 所述响应报文包含所 述被控设备的第一信号接收强度。
根据第二方面以及第二方面的第一种、 第二种可能的实现方式中的任意 一种, 在第二方面的第三种可能的实现方式中, 所述获取单元具体用于: 向 所述至少一个被控设备广播所述数据, 并且向所述至少一个被控设备分别发 送请求报文; 接收所述至少一个被控设备中的每个被控设备发送的响应报文, 所述响应报文包含所述被控设备的第二信号接收强度。
根据第二方面, 在第二方面的第四种可能的实现方式中, 所述获取单元 具体用于: 向所述至少一个被控设备广播多次数据; 获取每个被控设备在直 径模式下对应的多个信号接收强度, 对所述每个被控设备在直径模式下对应 的多个信号接收强度进行加权处理, 得到所述第一信号接收强度; 所述获取 单元具体用于: 向所述至少一个被控设备广播多次数据; 获取每个被控设备 在多径模式下对应的多个信号接收强度, 对所述每个被控设备在直径模式下 对应的多个信号接收强度进行加权处理, 得到所述第二信号接收强度。
居第二方面以及第二方面的第一种、 第二种、 第三种、 第四种可能的 实现方式中的任意一种, 在第二方面的第五种可能的实现方式中, 所述每个 被控设备的信号接收强度比, 为所述至少一个被控设备中每个被控设备的第 一信号接收强度与第二信号接收强度的比值; 所述判断单元具体用于: 如果 所述每个被控设备的信号接收强度比大于所述被控设备对应的预设信号接收 强度比, 则判断所述控制设备指向所述被控设备, 否则, 判断所述控制设备 不指向所述被控设备;
或者
所述每个被控设备的信号接收强度比, 为所述至少一个被控设备中每个 被控设备的第二信号接收强度与第一信号接收强度的比值; 所述判断单元具 体用于: 如果所述每个被控设备的信号接收强度比小于所述被控设备对应的 预设信号接收强度比, 则判断所述控制设备指向所述被控设备, 否则, 判断 所述控制设备不指向所述被控设备。
居第二方面以及第二方面的第一种、 第二种、 第三种、 第四种、 第五 种可能的实现方式中的任意一种, 在第二方面的第六种可能的实现方式中, 所述确定单元具体用于: 判断出所述控制设备只指向一个被控设备, 则确定 所述指向的被控设备为目标被控设备; 或者判断出所述控制设备指向两个被 控设备, 向用户提示选择目标被控设备的信息, 根据所述用户的处理指令选 择所述两个被控设备中的一个被控设备作为目标被控设备; 或者判断出所述 控制设备指向大于两个的被控设备, 则重新执行所述的选择被控设备的方法, 或向用户提示选择目标被控设备的信息, 根据所述用户的处理指令选择所述 大于两个的被控设备中的一个被控设备作为目标被控设备。
第三方面, 本发明实施例还提供了一种选择被控设备的控制设备, 应用 于一个控制设备和至少一个被控设备组成的无线网络中, 其特征在于, 所述 控制设备包括短距离无线通信芯片、 中央处理器、 显示器件和接口, 所述短 距离无线通信芯片和所述中央处理器通过总线和所述接口通信; 其中, 所述短距离无线通信芯片, 用于获取所述至少一个被控设备中每个被控 设备在直径模式下的第一信号接收强度, 以及在多径模式下的第二信号接收 强度;
所述中央处理器, 用于根据所述至少一个被控设备中每个被控设备的第 一信号接收强度与第二信号接收强度, 得到所述每个被控设备的信号接收强 度比;
所述中央处理器, 用于根据所述至少一个被控设备中的每个被控设备的 信号接收强度比与所述被控设备对应的预设信号接收强度比, 判断所述控制 设备是否指向对应的被控设备;
所述中央处理器, 用于从所述控制设备所指向的被控设备中, 确定目标 被控设备;
所述显示器件, 用于显示所述目标被控设备的控制界面。
根据第三方面, 在第三方面的第一种可能的实现方式中, 所述短距离无 线通信芯片在获取所述至少一个被控设备中每个被控设备在直径模式下的第 一信号接收强度, 以及在多径模式下的第二信号接收强度之前, 还用于获取 所述无线网络的当前无线信道环境模型; 所述中央处理器, 用于根据所述当 前无线信道环境模型, 生成所述无线网络中所述至少一个被控设备中的每个 被控设备的信道均衡器在直径模式下的抽头系数和多径模式下的抽头系数; 所述短距离无线通信芯片, 用于将所述至少一个被控设备中的每个被控设备 的信道均衡器在直径模式下的抽头系数和多径模式下的抽头系数分别发送至 对应的被控设备, 以使得所述每个被控设备根据各自的信道均衡器在直径模 式下的抽头系数计算得到所述第一信号接收强度, 和根据各自的信道均衡器 在多径模式下的抽头系数计算得到所述第二信号接收强度。
根据第三方面或者第三方面的第一种可能的实现方式, 在第三方面的第 二种可能的实现方式中, 其特征在于, 所述短距离无线通信芯片用于获取所 述至少一个被控设备中每个被控设备在直径模式下的第一信号接收强度, 包 括: 所述短距离无线通信芯片, 用于向所述至少一个被控设备广播所述数据, 并且向所述至少一个被控设备分别发送请求^艮文; 接收所述至少一个被控设 备中的每个被控设备发送的响应报文, 所述响应报文包含所述被控设备的第 一信号接收强度。
根据第三方面以及第三方面的第一种、 第二种可能的实现方式中的任意 一种, 在第三方面的第三种可能的实现方式中, 所述短距离无线通信芯片用 于获取所述至少一个被控设备中每个被控设备在多径模式下的第二信号接收 强度, 包括: 所述短距离无线通信芯片, 用于向所述至少一个被控设备广播 所述数据, 并且向所述至少一个被控设备分别发送请求报文; 接收所述至少 一个被控设备中的每个被控设备发送的响应报文, 所述响应报文包含所述被 控设备的第二信号接收强度。
根据第三方面, 在第三方面的第四种可能的实现方式中, 所述短距离无 线通信芯片用于获取所述至少一个被控设备中每个被控设备在直径模式下的 第一信号接收强度, 包括: 所述短距离无线通信芯片, 用于向所述至少一个 被控设备广播多次数据; 获取每个被控设备在直径模式下对应的多个信号接 收强度, 对所述每个被控设备在直径模式下对应的多个信号接收强度进行加 权处理, 得到所述第一信号接收强度; 所述短距离无线通信芯片用于获取所 述至少一个被控设备中每个被控设备在多径模式下的第二信号接收强度, 包 括: 所述短距离无线通信芯片用于向所述至少一个被控设备广播多次数据; 获取每个被控设备在多径模式下对应的多个信号接收强度, 对所述每个被控 设备在多径模式下对应的多个信号接收强度进行加权处理, 得到所述第二信 号接收强度。
居第三方面以及第三方面的第一种、 第二种、 第三种、 第四种可能的 实现方式中的任意一种, 在第三方面的第五种可能的实现方式中, 所述每个 被控设备的信号接收强度比, 为所述至少一个被控设备中每个被控设备的第 一信号接收强度与第二信号接收强度的比值; 所述中央处理器用于根据所述 至少一个被控设备中的每个被控设备的信号接收强度比与所述被控设备对应 的预设信号接收强度比, 判断所述控制设备是否指向对应的被控设备, 包括: 如果所述每个被控设备的信号接收强度比大于所述被控设备对应的预设信号 接收强度比, 则判断所述控制设备指向所述被控设备, 否则, 判断所述控制 设备不指向所述被控设备; 或者
所述每个被控设备的信号接收强度比, 为所述至少一个被控设备中每个 被控设备的第二信号接收强度与第一信号接收强度的比值; 所述中央处理器 用于根据所述至少一个被控设备中的每个被控设备的信号接收强度比与所述 被控设备对应的预设信号接收强度比, 判断所述控制设备是否指向对应的被 控设备, 包括: 如果所述每个被控设备的信号接收强度比小于所述被控设备 对应的预设信号接收强度比, 则判断所述控制设备指向所述被控设备, 否贝' J , 判断所述控制设备不指向所述被控设备。
根据第三方面以及第三方面的第一种、 第二种、 第三种、 第四种、 第五 种可能的实现方式中的任意一种, 在第三方面的第六种可能的实现方式中, 所述中央处理器用于从所述控制设备所指向的被控设备中, 确定目标被控设 备, 包括: 判断出所述控制设备只指向一个被控设备, 则确定所述指向的被 控设备为目标被控设备; 或者判断出所述控制设备指向两个被控设备, 向用 户提示选择目标被控设备的信息, 根据所述用户的处理指令选择所述两个被 控设备中的一个被控设备作为目标被控设备; 或者判断出所述控制设备指向 大于两个的被控设备, 则重新执行所述的选择被控设备的方法, 或向用户提 示选择目标被控设备的信息, 根据所述用户的处理指令选择所述大于两个的 被控设备中的一个被控设备作为目标被控设备。
本发明实施例提供的选择被控设备的方法和控制设备, 控制设备获取至 少一个被控设备中每个被控设备在直径模式下的第一信号接收强度, 以及在 多径模式下的第二信号接收强度; 根据至少一个被控设备中每个被控设备的 第一信号接收强度与第二信号接收强度, 得到每个被控设备的信号接收强度 比; 根据至少一个被控设备中的每个被控设备的信号接收强度比与被控设备 对应的预设信号接收强度比, 判断控制设备是否指向对应的被控设备; 从控 制设备所指向的被控设备中, 确定目标被控设备, 在控制设备上显示目标被 控设备的控制界面。 由此实现了一台控制设备可以基于短距离无线通信技术 对控制设备所指向的被控设备进行自动识别, 并选出目标被控设备。 附图说明
图 1为本发明实施例提供的一种选择被控设备的方法流程图;
图 2为本发明实施例提供的又一选择被控设备的方法流程图;
图 3为本发明实施例提供的控制设备指向被控设备时的信号传输路径以 及各路径下信号接收强度示意图;
图 4为本发明实施例提供的控制设备不指向被控设备时的信号传输路径 以及各路径下信号接收强度示意图;
图 5为本发明实施例提供的一种选择被控设备的控制设备示意图; 图 6为本发明实施例提供的一种选择被控设备的控制设备示意图。 具体实施方式
为便于对本发明的理解, 下面将结合附图以具体实施例做进一步的解释 说明, 实施例并不构成对本发明保护范围的限定。
本发明实施例提供的技术方案的具体应用场景为室内环境, 如家庭室内 环境, 室内可以放置一个控制设备和多个被控设备, 其中控制设备和被控设 备中都装配有短距离无线通信收发模块, 用以支持短距离无线信号的传输和 处理。 控制设备作为主设备 (Mas ter) , 被控设备作为从设备(S lave)组成无线 网络; 控制设备可以为万能遥控器、 智能终端 (例如, 智能手机、 平板电脑 等) , 用户控制位于同一无线网络中的被控设备, 被控设备可以为电视机、 机顶盒、 空调、 数字通用光盘(Dig i ta l Ver sat i le Di sc , DVD )机、 音响设 备等。 本申请文件中, 控制设备的短距离通信天线为有向天线, 且天线的主 瓣方向为控制设备的前端指向方向 (即指向方向) , 被控设备的短距离通信 天线为全向天线; 控制设备和被控设备的短距离无线通信收发模块中均配置 有信道均衡器, 并且信道均衡器的各个抽头系数可配置; 所述至少一个被控 设备中的每个被控设备均已将各自控制指令的数据模型上传至控制设备, 并 在控制设备内生成控制界面。
其中, 本申请文件中, 短距离无线通信不限定具体的无线通信技术, 可 包括蓝牙、 Wi-Fi Di rect , 消费电子射频 ( Radio Frequency for Consumer Electronics , RF4CE )技术、 超宽带 ( Ul t ra- Wideband , 羅)技术、 紫蜂协 议 Zigbee技术、 家庭射频 ( Home Radio Frequency, HomeRF )技术等。
需要说明的是, 在控制设备发出短距离无线信号时, 控制设备指向被控 设备和不指向被控设备所对应的信道模型是不同的。 当遥控器指向被控设备 时, 直径分量的信号强度最大, 多径分量的信号强度反而较小; 而不指向被 控设备时, 由于信号受到墙壁、 地板、 家居设施等物体的反射和遮挡, 在接 收到直径分量的信号强度不大, 甚至无直径分量, 接收信号能量的大部分来 自多径分量。 因此, 可通过这一区别区分控制设备是否指向被控设备。
图 1 为本发明实施例提供的一种选择被控设备的方法流程图, 该实施例 提供的技术方案应用于具有一个控制设备和至少一个被控设备的无线网络 中, 具体地, 如图 1所示, 该实施例包括以下执行方法:
步骤 101 ,控制设备获取至少一个被控设备中每个被控设备在直径模式下 的第一信号接收强度, 以及在多径模式下的第二信号接收强度。
为了实现本发明的技术方案, 在实际构建无线网络的过程中, 控制设备 还可以获取到当前的无线信道环境模型, 并且根据该当前无线信道环境模型, 生成无线网络中所述至少一个被控设备中的每个被控设备的信道均衡器在直 径模式下的抽头系数和多径模式下的抽头系数。
其中, 获取当前的无线信道环境模型可以釆用参考信号估计、 最大似然 估计、 盲估计等信道估计算法, 其具体实现方式不构成对本发明的限定; 控 制设备在生成各个被控设备的抽头系数之后, 可将所述至少一个被控设备中 的每个被控设备的信道均衡器在直径模式下的抽头系数和多径模式下的抽头 系数分别发送至对应的被控设备。
可选的, 直径模式下直径分量的抽头系数所占权重最大, 权值远远大于 多径分量的抽头系数; 多径模式下直径分量的抽头系数权重较小, 或者权重 为 0,各多径分量的抽头系数权重较大。具体的抽头系数权重分配可根据室内 的无线信道环境模型进行设定, 无线信道环境模型包括多径衰落信道模型、 噪声造成的瑞利信道衰落模型以及其他 ISM频段干扰噪声的干扰模型等, 无 线信道环境与室内各电子设备的摆放位置、 室内家具设施的摆放位置、 房间 的格局以及所在小区的无线电干扰情况均有关系, 而且是时变的, 不同房间 对应的无线信道环境均不尽相同。 具体的信道均衡器抽头系数的设定可釆用 迫零算法、 最小均方误差、 卡尔曼滤波等信道均衡算法, 其具体实现方式不 构成对本发明的限定。
控制设备在配置的过程中对不同的被控设备可设置相同的直径模式和多 径模式下信道均衡器的抽头系数, 也可针对不同的被控设备设置不同的信道 均衡器的抽头系数。
当控制设备设置好各个被控设备的信道均衡器的抽头系数后, 可分别发 送至对应的被控设备, 其中可通过第一配置报文将被控设备在直径模式下的 抽头系数发送到被控设备, 以使得被控设备根据信道均衡器在直径模式下的 抽头系数计算得到所述第一信号接收强度。 控制设备可通过第二配置报文将 被控设备在多径模式下的抽头系数发送到被控设备, 以使得被控设备根据信 道均衡器在多径模式下的抽头系数计算得到所述第二信号接收强度。
其中, 获取至少一个被控设备中每个被控设备在直径模式下的第一信号 接收强度的过程, 可以包括: 向所述至少一个被控设备广播数据, 并且向所 述至少一个被控设备分别发送请求报文, 该请求报文用于指示被控设备将自 身的信号接收强度读取并反馈给控制设备; 接收所述至少一个被控设备分别 发送的响应报文, 所述响应报文包含所述被控设备的第一信号接收强度。 这 里所指的第一信号接收强度用来表征单位时间内被控设备对天线接收到的电 磁信号经过设置为直径模式抽头系数的均衡器处理后的信号的能量大小, 衡 量指标可以为信号功率、 信号最大幅值、 信号峰-峰值等。
可选地, 控制设备配置好无线网络中被控设备信道均衡器为直径模式下 的抽头系数, 并根据所配置好的收发时隙发送给所述至少一个被控设备中的 每个被控设备。 各被控设备在接收到信道均衡器的抽头系数配置报文后, 配 置其信道均衡器的抽头系数为控制设备指定的直径模式下的抽头系数。 在配 置完成后, 控制设备向各被控设备广播数据, 该数据主要用于检测被控设备 接收信号的强度。 同时控制设备向各被控设备发送请求报文, 读取被控设备 接收所述数据的接收信号强度,对于被控设备 i , 在接收到控制设备发送来的 请求报文后, 将其接收到的数据的信号强度 IDi发送给控制设备。
而获取至少一个被控设备中每个被控设备在多径模式下的第二信号接收 强度的过程, 可以包括: 向所述至少一个被控设备广播数据, 并且向所述至 少一个被控设备分别发送请求报文, 该请求报文用于指示被控设备将自身的 信号接收强度读取并反馈给控制设备; 接收所述至少一个被控设备分别发送 的响应报文, 所述响应报文包含所述被控设备的第二信号接收强度。 这里所 指的第二信号接收强度用来表征单位时间内被控设备对天线接收到的电磁信 号经过设置为多径模式抽头系数的均衡器处理后的信号的能量大小, 衡量指 标可以为信号功率、或者信号最大幅值、或者信号峰-峰值等。需要说明的是, 第二信号接收强度的衡量指标必须与前述的第一信号接收强度的衡量指标相 同。
控制设备配置好对于无线网络中被控设备信道均衡器为多径模式下的抽 头系数, 并根据所配置好的收发时隙发送给所述至少一个被控设备中的每个 被控设备。 各被控设备在接收到信道均衡器的抽头系数配置报文后, 配置其 信道均衡器的抽头系数为控制设备指定的多径模式下的抽头系数。 在配置完 成后, 控制设备向各被控设备广播数据, 该数据主要用于检测接收信号强度。 同时控制设备向各被控设备发送请求报文, 读取被控设备接收所述数据的接 收信号强度指示, 对于被控设备 i , 在接收到控制设备发送来的请求报文后, 将其接收到的数据的信号强度 ΙΜί发送给控制设备。
可选的, 获取至少一个被控设备中每个被控设备在直径模式下的第一信 号接收强度, 具体包括: 向所述至少一个被控设备广播多次数据; 获取每个 被控设备在直径模式下对应的多个信号接收强度, 对所述每个被控设备在直 径模式下对应的多个信号接收强度进行加权处理, 得到所述第一信号接收强 度。 获取每个被控设备在多径模式下的第二信号接收强度, 具体包括: 向所 述至少一个被控设备广播多次数据; 获取每个被控设备在多径模式下对应的 多个信号接收强度, 对所述每个被控设备在直径模式下对应的多个信号接收 强度进行加权处理, 得到所述第二信号接收强度。
也即, 控制设备可以重复执行上述操作, 并且在获取到每个被控设备对 应的多组 1^和 ΙΜί数据后,对数据进行加权平均处理, 由此可以避免在测试时 由于信道的随机突变或者强噪声干扰等原因导致测试数据的误差较大, 提高 测试数据的可靠性。 经过加权平均处理后, 得到最终的第一信号接收强度 IDi 和第二信号接收强度 ΙΜί
步骤 102 ,控制设备根据所述至少一个被控设备中每个被控设备的第一信 号接收强度与第二信号接收强度, 得到所述每个被控设备的信号接收强度比。 对于被控设备 i , 其信号接收强度比有两种定义方式: 一种是信号接收强 度比为被控设备 i的第一信号接收强度 IDi与第二信号接收强度 ΙΜί的比值,即 被控设备 i的信号接收强度比 Α: = ; 另一种定义方式是信号接收强度比为 被控设备 i的第二信号接收强度 ΙΜί与第一信号接收强度 1«的比值,即被控设 备 i 的信号接收强度比 Α: = ^。 釆用何种定义方式可由用户或者开发者自行 决定, 但是在一种实际情况下只能釆用一种定义方式。
控制设备可以根据对该被控设备 i 所配置的直径模式与多径模式下信道 均衡器的抽头系数, 设定该被控设备的预设信号接收强度比。 同被控设备 i 的信号接收强度比的定义相同, 被控设备 i 的预设信号接收强度比也有两种 定义方式。 一般情况下, 直径模式下的信道均衡器的抽头系数中直径分量对 应的抽头系数要远远大于多径分量对应的抽头系数, 多经分量的抽头系数往 往艮小, 甚至为零; 而多径模式下多径分量对应的抽头系数要远远大于直径 分量对应的抽头系数, 直径分量的抽头系数往往很小, 甚至为零。 因此, 若 釆用第一种定义方式, 预设信号强度比 Di与直径模式和多径模式下直径分量 抽头系数的差值成正比, 差值越大, 预设信号强度比 Di的值越大; 同理, 若 釆用第二种定义方式, 预设信号强度比 Di与直径模式和多径模式下直径分量 抽头系数的差值成反比, 差值越大, 预设信号强度比 Di的值越小。
步骤 103 ,控制设备根据所述至少一个被控设备中的每个被控设备的信号 接收强度比与所述被控设备对应的预设信号接收强度比, 判断所述控制设备 是否指向对应的被控设备。
针对每一个被控设备 i ,将预设信号接收强度比与步骤 102计算出的信号 接收强度比进行对比。 对于步骤 102 中所述的第一种定义方式, 如果信号接 收强度比大于预设信号接收强度比, 则判断控制设备指向被控设备 i ; 若小于 预设信号接收强度比, 则判断控制设备不指向被控设备 i ; 若等于预设信号接 收强度比, 可以判断控制设备指向被控设备 i , 也可以判断控制设备不指向被 控设备 i ,可以根据具体需要来设定。对于步骤 102中所述的第二种定义方式, 如果信号接收强度比小于预设信号接收强度比, 则判断控制设备指向被控设 备 i ; 若大于预设信号接收强度比, 则判断控制设备不指向被控设备 i ; 若等 于预设信号接收强度比, 可以判断控制设备指向被控设备 i , 也可以判断控制 设备不指向被控设备 i , 可以根据具体需要来设定。
步骤 104 , 从所述控制设备所指向的被控设备中, 确定目标被控设备, 在 所述控制设备上显示所述目标被控设备的控制界面。
根据步骤 103 的对比结果, 所述从所述控制设备所指向的被控设备中, 确定目标被控设备, 包括: 判断出所述控制设备只指向一个被控设备时, 则 确定所述指向的被控设备为目标被控设备; 或者判断出所述控制设备指向两 个被控设备时, 向用户提示选择目标被控设备的信息, 根据所述用户的处理 指令选择所述两个被控设备中的一个被控设备作为目标被控设备; 或者判断 出所述控制设备指向大于两个的被控设备时, 则重新执行所述的选择被控设 备的方法, 或向用户提示选择目标被控设备的信息, 根据所述用户的处理指 令选择所述大于两个的被控设备中的一个被控设备作为目标被控设备。
当判断出控制设备只指向一个被控设备时, 则控制设备可自动弹出该目 标被控设备的控制界面, 以使用户对该被控设备进行相应的控制操作。
当判断出控制设备指向两个被控设备时, 例如判断出控制设备同时指向 机顶盒和电视机, 则控制设备可向用户提示选择目标被控设备的信息, 其中 提示的方式可以为在控制设备的显示器件上显示操作界面的形式提示用户, 还可以为控制设备播放语音、 或者显示文本、 或者显示图像等形式来提示用 户, 由用户根据该提示选择要对哪个被控设备进行控制, 控制设备可根据用 户的操作生成对应的处理指令, 并根据该处理指令选择对应的被控设备作为 目标被控设备, 并自动弹出该当前被控设备的控制界面, 以使用户对该被控 设备进行相应的控制操作。 另外, 除了向用户提示选择目标被控设备之外, 控制设备还可以根据各个被控设备的优先级、 用户的偏好、 用户的使用习惯 等自动选择一个目标被控设备。
如果步骤 103判断出控制设备指向大于两个的被控设备, 则可以说明选 择被控设备失败, 重新执行上述选择被控设备的方法, 或者还可以向用户提 示选择目标被控设备的信息, 由用户在所指向的被控设备中选择一个作为目 标被控设备。 釆用何种选择目标被控设备的方式可由用户或者开发者自行决 定。
由此, 本发明实施例实现了一台控制设备可以根据被控设备回传的信号 接收强度判断控制设备是否指向被控设备, 根据一般人们使用遥控器控制设 备的操作习惯, 用户手持控制设备指向哪个被控设备, 就代表了用户想要对 哪个被控设备进行控制, 因此本发明实施例通过判断控制设备是否指向被控 设备实现了基于短距离无线通信技术自动对用户想要控制的设备进行识别, 在多台被控设备中选择出目标被控设备, 提升用户体验效果。
图 2为本发明实施例提供的又一选择被控设备的方法流程图; 该实施例 提供的技术方案应用于具有一个控制设备和至少一个被控设备的无线网络 中, 如图 2所示, 该实施例包括以下执行步骤:
步骤 201 , 控制设备确定每个被控设备的发送时隙和接收时隙。
在构建无线网络的过程中, 控制设备可以根据自身的短距离通信时钟配 置所述至少一个被控设备中的每个被控设备的时钟, 被控设备的短距离通信 时钟与控制设备的短距离通信时钟保持严格同步, 这样各个设备的链路时隙 就能做到统一和同步。 控制设备釆用时分双工(Time Divi s ion Duplexing , TDD)复用的方式与所述至少一个被控设备中的每个被控设备发送和接收数据 报文, 除了广播报文之外, 在同一时隙内控制设备只能向一个被控设备发送 数据报文或者只能接收来自一个被控设备的数据报文。
步骤 202 ,控制设备配置直径模式下信道均衡器的抽头系数和多径模式下 的抽头系数。
为了实现本发明的技术方案, 在实际构建无线网络的过程中, 控制设备 还可以获取到当前的无线信道环境模型, 并且根据该当前无线信道环境模型, 生成无线网络中所述至少一个被控设备中的每个被控设备的信道均衡器在直 径模式下的抽头系数和多径模式下的抽头系数。 其中, 获取当前的无线信道 环境模型可以釆用参考信号估计、 最大似然估计、 盲估计等信道估计算法, 其具体实现方式不构成对本发明的限定; 将所述至少一个被控设备中的每个 被控设备的信道均衡器在直径模式下的抽头系数和多径模式下的抽头系数分 别发送至对应的被控设备。
可选的, 直径模式下直径分量的抽头系数所占权重最大, 权值远远大于 多径分量的抽头系数; 多径模式下直径分量的抽头系数权重较小, 或者权重 为 0,各多径分量的抽头系数权重较大。具体的抽头系数权重分配可根据室内 的无线信道环境模型进行设定, 无线信道环境模型包括多径衰落信道模型、 噪声造成的瑞利信道衰落模型以及其他 ISM频段干扰噪声的干扰模型等, 无 线信道环境与室内各电子设备的摆放位置、 室内家具设施的摆放位置、 房间 的格局以及所在小区的无线电干扰情况均有关系, 而且是时变的, 不同房间 对应的无线信道环境均不尽相同。 具体的信道均衡器抽头系数的设定可釆用 迫零算法、 最小均方误差、 卡尔曼滤波等信道均衡算法, 其具体实现方式不 构成对本发明的限定。
控制设备在配置的过程中对不同的被控设备可设置相同的直径模式和多 径模式下信道均衡器的抽头系数, 也可针对不同的被控设备设置不同的信道 均衡器的抽头系数。
步骤 203 ,控制设备向每个被控设备发送配置信道均衡器的抽头系数为直 径模式下的抽头系数的配置报文。
各被控设备在接收到信道均衡器的抽头系数配置报文后, 配置其信道均 衡器的抽头系数为控制设备指定的直径模式下的抽头系数, 以便根据信道均 衡器在直径模式下的抽头系数计算得到直径模式下的第一信号接收强度。
步骤 204 ,在被控设备配置信道均衡器的抽头系数为直径模式之后, 向每 个被控设备广播数据, 并且向每个被控设备发送请求报文。
各被控设备在接收到信道均衡器的抽头系数配置报文后, 配置其信道均 衡器的抽头系数为控制设备指定的直径模式下的抽头系数。 在配置完成后, 控制设备向各被控设备广播数据, 该数据主要用于检测接收信号强度。 同时 控制设备向各被控设备发送请求报文, 读取被控设备接收所述数据的信号接 收强度。
步骤 205 , 接收每个被控设备接收到报文后发送的第一信号接收强度。 每个被控设备在接收到控制设备发送来的读取信号接收强度指示指令 后, 将其接收到的数据的信号强度 IDi发送给控制设备。 其中, 这里的第一信 号接收强度用来表征单位时间内被控设备对天线接收到的电磁信号经过设置 为直径模式抽头系数的均衡器处理后的信号的能量大小, 衡量指标可以为信 号功率、 信号最大幅值、 信号峰-峰值等。
步骤 206 ,向每个被控设备发送配置信道均衡器的抽头系数为多径模式下 的抽头系数的配置报文。
步骤 207 , 在被控设备配置信道均衡器的抽头系数为多径模式之后, 向每 个被控设备广播数据, 并且向每个被控设备发送请求报文。
各被控设备在接收到信道均衡器的抽头系数配置报文后, 配置其信道均 衡器的抽头系数为控制设备指定的多径模式下的抽头系数。 在配置完成后, 控制设备向各被控设备广播数据, 该数据主要用于检测接收信号强度。 同时 控制设备向各被控设备发送请求报文, 用来读取被控设备接收所述数据的接 收信号强度。
步骤 208 , 接收每个被控设备接收到报文后发送的第二信号接收强度。 每个被控设备在接收到控制设备发送来的读取信号接收强度指示指令 后, 将其接收到的数据的信号强度 ΙΜί发送给控制设备。 这里所指的第二信号 接收强度用来表征单位时间内被控设备对天线接收到的电磁信号经过设置为 多径模式抽头系数的均衡器处理后的信号的能量大小, 衡量指标可以为信号 功率、 信号最大幅值、 信号峰-峰值等, 但是衡量指标必须与前述的第一信号 接收强度的衡量指标相同。
其中,控制设备可以重复执行步骤 205至步骤 208 , 并且在获取到每个被 控设备对应的多组 1^和 ΙΜί数据后,对数据进行加权平均处理, 由此可以避免 在测试时由于信道的随机突变或者强噪声干扰等原因导致测试数据的误差较 大, 提高测试数据的可靠性。 经过加权平均处理后, 得到最终的第一信号接 收强度 IDi和第二信号接收强度 ΙΜί
步骤 209 ,根据所述至少一个被控设备中每个被控设备的第一信号接收强 度与第二信号接收强度, 得到所述每个被控设备的信号接收强度比。
对于被控设备 i , 其信号接收强度比有两种定义方式: 一种是信号接收强 度比为被控设备 i的第一信号接收强度 IDi与第二信号接收强度 ΙΜί的比值,即 被控设备 i的信号接收强度比 A: = ; 另一种定义方式是信号接收强度比为
I Mi
被控设备 i的第二信号接收强度 ΙΜί与第一信号接收强度 1«的比值,即被控设 备 i 的信号接收强度比 A: = 。 釆用何种定义方式可由用户或者开发者自行 决定, 但是在一种实际情况下只能釆用一种定义方式。
控制设备可以根据对该被控设备 i所配置的直径模式与多径模式下信道 均衡器的抽头系数, 设定该被控设备的预设信号接收强度比。 同被控设备 i 的信号接收强度比的定义相同, 被控设备 i 的预设信号接收强度比也有两种 定义方式。 一般情况下, 直径模式下的信道均衡器的抽头系数中直径分量对 应的抽头系数要远远大于多径分量对应的抽头系数, 多经分量的抽头系数往 往艮小, 甚至为零; 而多径模式下多径分量对应的抽头系数要远远大于直径 分量对应的抽头系数, 直径分量的抽头系数往往很小, 甚至为零。 因此, 若 釆用第一种定义方式, 预设信号强度比 Di与直径模式和多径模式下直径分量 抽头系数的差值成正比, 差值越大, 预设信号强度比 Di的值越大; 同理, 若 釆用第二种定义方式, 预设信号强度比 Di与直径模式和多径模式下直径分量 抽头系数的差值成反比, 差值越大, 预设信号强度比 Di的值越小。 步骤 210 ,根据每个被控设备的信号接收强度比与所述被控设备对应的预 设信号接收强度比, 判断所述控制设备是否指向对应的被控设备。
可选的,假设控制设备指向被控设备 i , 则控制设备的指向方向与被控设 备 i 之间构成一条直射路径, 且这条路径是视距可到达路径, 即中间不会有 任何遮挡, 由于本申请中控制设备的短距离通信天线为有向天线, 且主瓣方 向指向控制设备的指向方向, 因此在被控设备 i 的接收信号中, 直径分量的 信号强度最大, 而其他多径分量的信号强度较小, 控制设备指向被控设备时 的信号传输路径以及各路径下信号接收强度示意图如图 3所示。 如图 3所示, 当被控设备的接收时隙处于直径模式下接收数据信号时, 由于直径模式下信 道均衡器的直径分量的抽头系数远远大于其他多径分量的抽头系数, 因此在 经过信道均衡后所接收到的信号强度较大; 相反, 当被控设备的接收时隙处 于多径模式下接收数据信号时, 由于信道均衡器的直径分量的抽头系数远远 小于其他多径分量的抽头系数, 因此在经过信道均衡后所接收到的信号强度 较小。 因此可以得出结论, 当控制设备指向被控设备时, 所得到的在直径模 式下的第一信号接收强度 IDi要远远大于在多径模式下的第二信号接收强度 IMi o
假设控制设备不指向被控设备 i ,则短距离通信天线的主瓣方向并不指向 被控设备 i , 导致控制设备到被控设备的直径分量的信号强度较低, 甚至由于 控制设备与被控设备之间有物体遮挡, 使得控制设备到被控设备的直径分量 的信号强度为零, 而控制设备短距离通信天线主瓣方向发出的信号经过墙壁、 天花板等的反射到达被控设备, 成为多径分量, 因此多径分量的信号强度较 大, 控制设备不指向被控设备时的信号传输路径以及各路径下信号接收强度 示意图如图 4所示。 如图 4所示, 当被控设备的接收时隙处于直径模式下接 收数据信号时, 由于直径模式下信道均衡器的多径分量的抽头系数远远小于 直径分量的抽头系数, 因此在经过信道均衡后所接收到的信号强度较小; 相 反, 当被控设备的接收时隙处于多径模式下接收数据信号时, 由于信道均衡 器的多径分量的抽头系数远远大于直径分量的抽头系数, 因此在经过信道均 衡后所接收到的信号强度较大。 因此可以得出结论, 当控制设备不指向被控 设备时, 所得到的在直径模式下的第一信号接收强度 IDi要远远小于在多径模 式下的第二信号接收强度 ΙΜί
因此,针对每一个被控设备 i , 将预设信号接收强度比与步骤 102计算出 的信号接收强度比进行对比。 对于步骤 209 中所述的第一种定义方式, 如果 信号接收强度比大于预设信号接收强度比, 则判断控制设备指向被控设备 i ; 若小于预设信号接收强度比, 则判断控制设备不指向被控设备 i ; 若等于预设 信号接收强度比, 可以判断控制设备指向被控设备 i , 也可以判断控制设备不 指向被控设备 i , 可以根据具体需要来设定。对于步骤 102中所述的第二种定 义方式, 如果信号接收强度比小于预设信号接收强度比, 则判断控制设备指 向被控设备 i ; 若大于预设信号接收强度比, 则判断控制设备不指向被控设备 i ; 若等于预设信号接收强度比, 可以判断控制设备指向被控设备 i , 也可以 判断控制设备不指向被控设备 i , 可以根据具体需要来设定。
步骤 211 , 从所述控制设备所指向的被控设备中, 确定目标被控设备, 在 所述控制设备上显示所述目标被控设备的控制界面。
根据步骤 210 的对比结果, 从所述控制设备所指向的被控设备中, 确定 目标被控设备, 包括: 判断出所述控制设备只指向一个被控设备时, 则确定 所述指向的被控设备为目标被控设备; 或者判断出所述控制设备指向两个被 控设备时, 向用户提示选择目标被控设备的信息, 根据所述用户的处理指令 选择所述两个被控设备中的一个被控设备作为目标被控设备; 或者判断出所 述控制设备指向大于两个的被控设备时, 则重新执行所述的选择被控设备的 方法, 或向用户提示选择目标被控设备的信息, 根据所述用户的处理指令选 择所述大于两个的被控设备中的一个被控设备作为目标被控设备。
当判断出控制设备只指向一个被控设备时, 则控制设备可自动弹出该目 标被控设备的控制界面, 以使用户对该被控设备进行相应的控制操作; 当判 断出控制设备指向两个被控设备时, 例如判断出控制设备同时指向机顶盒和 电视机, 则控制设备可向用户提示选择目标被控设备的信息, 其中提示的方 式可以为在控制设备的显示器件上显示操作界面的形式提示用户, 还可以为 控制设备播放语音、 或者显示文本、 或者显示图像等形式来提示用户, 由用 户根据该提示选择要对哪个被控设备进行控制, 控制设备可根据用户的操作 生成对应的处理指令, 并根据该处理指令选择对应的被控设备作为目标被控 设备, 并自动弹出该当前被控设备的控制界面, 以使用户对该被控设备进行 相应的控制操作。 另外, 除了向用户提示选择目标被控设备之外, 控制设备 还可以根据各个被控设备的优先级、 用户的偏好、 用户的使用习惯等自动选 择一个目标被控设备。
如果步骤 210判断出控制设备指向大于两个的被控设备, 则可以说明选 择被控设备失败, 重新执行上述选择被控设备的方法, 或者还可以向用户提 示选择目标被控设备的信息, 由用户在所指向的被控设备中选择一个作为目 标被控设备。 釆用何种选择目标被控设备的方式可由用户或者开发者自行决 定。
由此, 本发明实施例实现了一台控制设备可以根据被控设备回传的信号 接收强度判断控制设备是否指向被控设备, 根据一般人们使用遥控器控制设 备的操作习惯, 用户手持控制设备指向哪个被控设备, 就代表了用户想要对 哪个被控设备进行控制, 因此本发明实施例通过判断控制设备是否指向被控 设备实现了基于短距离无线通信技术自动对用户想要控制的设备进行识别, 在多台被控设备中选择出目标被控设备, 提升用户体验效果。
相应地, 本发明实施例还提供了一种选择被控设备的控制设备, 应用于 一个控制设备和至少一个被控设备组成的无线网络中, 图 5 为本发明实施例 提供的一种选择被控设备的控制设备示意图, 如图所示, 本实施例提供的被 控设备包括: 获取单元 501 ,用于获取所述至少一个被控设备中每个被控设备在直径模 式下的第一信号接收强度, 以及在多径模式下的第二信号接收强度。
获取单元 501 具体用于: 向所述至少一个被控设备广播所述数据, 并且 向所述至少一个被控设备分别发送请求报文; 接收所述至少一个被控设备中 的每个被控设备发送的响应报文, 所述响应报文包含所述被控设备的第一信 号接收强度。 这里所指的第一信号接收强度用来表征单位时间内被控设备对 天线接收到的电磁信号经过设置为直径模式抽头系数的均衡器处理后的信号 的能量大小, 衡量指标可以为信号功率、 信号最大幅值、 信号峰-峰值等。
可选的, 控制设备配置好无线网络中被控设备信道均衡器为直径模式下 的抽头系数, 并根据所配置好的收发时隙发送给所述至少一个被控设备中的 每个被控设备。 各被控设备在接收到信道均衡器的抽头系数配置报文后, 配 置其信道均衡器的抽头系数为控制设备指定的直径模式下的抽头系数。 在配 置完成后, 控制设备向各被控设备广播数据, 该数据主要用于检测被控设备 接收信号的强度。 同时控制设备向各被控设备发送请求报文, 读取被控设备 接收所述数据的接收信号强度,对于被控设备 i , 在接收到控制设备发送来的 请求报文后, 将其接收到的数据的信号强度 IDi发送给控制设备。
获取单元 501 具体用于: 向所述至少一个被控设备广播数据, 并且向所 述至少一个被控设备分别发送请求报文; 接收所述至少一个被控设备中的每 个被控设备发送的响应报文, 所述响应报文包含所述被控设备的第二信号接 收强度。 这里所指的第二信号接收强度用来表征单位时间内被控设备对天线 接收到的电磁信号经过设置为多径模式抽头系数的均衡器处理后的信号的能 量大小, 衡量指标可以为信号功率、 信号最大幅值、 信号峰-峰值等。 但是衡 量指标必须与前述的第一信号接收强度的衡量指标相同。
控制设备配置好对于微微网中被控设备信道均衡器为多径模式下的抽头 系数, 并根据所配置好的收发时隙发送给所述至少一个被控设备中的每个被 控设备。 各被控设备在接收到信道均衡器的抽头系数配置报文后, 配置其信 道均衡器的抽头系数为控制设备指定的多径模式下的抽头系数。 在配置完成 后, 控制设备向各被控设备广播数据, 该数据主要用于检测被控设备接收信 号的强度。 同时控制设备向各被控设备发送请求报文, 读取被控设备接收所 述数据的接收信号强度,对于被控设备 i , 在接收到控制设备发送来的请求报 文后, 将其接收到的数据的信号强度 ΙΜί发送给控制设备。
获取单元 501 具体用于: 向所述至少一个被控设备广播多次数据; 获取 每个被控设备在直径模式下对应的多个信号接收强度, 对所述每个被控设备 在直径模式下对应的多个信号接收强度进行加权处理, 得到所述第一信号接 收强度。 获取单元 501 具体用于: 向所述至少一个被控设备广播多次数据; 获取每个被控设备在多径模式下对应的多个信号接收强度, 对所述每个被控 设备在直径模式下对应的多个信号接收强度进行加权处理, 得到所述第二信 号接收强度。
可选的, 控制设备可以重复执行上述操作, 并且在获取到每个被控设备 对应的多组 1^和 ΙΜί数据后,对数据进行加权平均处理, 由此可以避免在测试 时由于信道的随机突变或者强噪声干扰等原因导致测试数据的误差较大, 提 高测试数据的可靠性。 经过加权平均处理后, 得到最终的第一信号接收强度 IDi和第二信号接收强度 ΙΜί
计算单元 502 ,用于根据所述至少一个被控设备中每个被控设备的第一信 号接收强度与第二信号接收强度, 得到所述每个被控设备的信号接收强度比。
对于被控设备 i , 其信号接收强度比有两种定义方式: 一种是信号接收强 度比为被控设备 i的第一信号接收强度 IDi与第二信号接收强度 ΙΜί的比值,即 被控设备 i的信号接收强度比 A: = ; 另一种定义方式是信号接收强度比为
I Mi
被控设备 i的第二信号接收强度 ΙΜί与第一信号接收强度 1«的比值,即被控设 备 i 的信号接收强度比 A: =^。 釆用何种定义方式可由用户或者开发者自行 决定, 但是在一种实际情况下只能釆用一种定义方式。 控制设备可以根据对该被控设备 i 所配置的直径模式与多径模式下信道 均衡器的抽头系数, 设定该被控设备的预设信号接收强度比。 同被控设备 i 的信号接收强度比的定义相同, 被控设备 i 的预设信号接收强度比也有两种 定义方式。 一般情况下, 直径模式下的信道均衡器的抽头系数中直径分量对 应的抽头系数要远远大于多径分量对应的抽头系数, 多经分量的抽头系数往 往艮小, 甚至为零; 而多径模式下多径分量对应的抽头系数要远远大于直径 分量对应的抽头系数, 直径分量的抽头系数往往很小, 甚至为零。 因此, 若 釆用第一种定义方式, 预设信号强度比 Di与直径模式和多径模式下直径分量 抽头系数的差值成正比, 差值越大, 预设信号强度比 Di的值越大; 同理, 若 釆用第二种定义方式, 预设信号强度比 Di与直径模式和多径模式下直径分量 抽头系数的差值成反比, 差值越大, 预设信号强度比 Di的值越小。
判断单元 503 ,用于根据所述至少一个被控设备中的每个被控设备的信号 接收强度比与所述被控设备对应的预设信号接收强度比, 判断所述控制设备 是否指向对应的被控设备。
如果每个被控设备的信号接收强度比, 为所述至少一个被控设备中每个 被控设备的第一信号接收强度与第二信号接收强度的比值; 则判断单元 503 具体用于: 如果所述每个被控设备的信号接收强度比大于所述被控设备对应 的预设信号接收强度比, 则判断所述控制设备指向所述被控设备; 若小于预 设信号接收强度比, 则判断控制设备不指向被控设备; 若等于预设信号接收 强度比, 可以判断控制设备指向被控设备, 也可以判断控制设备不指向被控 设备, 可以根据具体需要来设定。
如果每个被控设备的信号接收强度比, 为所述至少一个被控设备中每个 被控设备的第二信号接收强度与第一信号接收强度的比值; 则判断单元 503 具体用于: 如果所述每个被控设备的信号接收强度比小于所述被控设备对应 的预设信号接收强度比, 则判断所述控制设备指向所述被控设备; 若大于预 设信号接收强度比, 则判断控制设备不指向被控设备; 若等于预设信号接收 强度比, 可以判断控制设备指向被控设备, 也可以判断控制设备不指向被控 设备, 可以根据具体需要来设定。
确定单元 504 ,用于从所述控制设备所指向的被控设备中,确定目标被控 设备, 在所述控制设备上显示所述目标被控设备的控制界面。
确定单元 504具体用于: 判断出所述控制设备只指向一个被控设备, 则 确定所述指向的被控设备为目标被控设备; 或者判断出所述控制设备指向两 个被控设备, 向用户提示选择目标被控设备的信息, 根据所述用户的处理指 令选择所述两个被控设备中的一个被控设备作为目标被控设备; 或者判断出 所述控制设备指向大于两个的被控设备, 则重新执行所述的选择被控设备的 方法, 或向用户提示选择目标被控设备的信息, 根据所述用户的处理指令选 择所述大于两个的被控设备中的一个被控设备作为目标被控设备。
可选的, 如果判断单元 503判断出控制设备只指向一个被控设备, 则控 制设备可自动弹出该目标被控设备的控制界面, 以使用户对该被控设备进行 相应的控制操作; 如果判断出控制设备指向两个被控设备, 例如判断出控制 设备同时指向机顶盒和电视机, 则控制设备可向用户提示选择目标被控设备 的信息, 其中提示的方式可以为在控制设备的显示器件上显示操作界面的形 式提示用户, 还可以为控制设备播放语音、 或者显示文本、 或者显示图像等 形式来提示用户, 由用户根据该提示选择要对哪个被控设备进行控制, 控制 设备可根据用户的操作生成对应的处理指令, 并根据该处理指令选择对应的 被控设备作为目标被控设备, 并自动弹出该当前被控设备的控制界面, 以使 用户对该被控设备进行相应的控制操作。 另外, 除了向用户提示选择目标被 控设备之外, 控制设备还可以根据各个被控设备的优先级、 用户的偏好、 用 户的使用习惯等自动选择一个目标被控设备。
如果判断单元 503判断出控制设备指向大于两个的被控设备, 则可以说 明选择被控设备失败, 重新执行上述选择被控设备的方法, 或者还可以向用 户提示选择目标被控设备的信息, 由用户在所指向的被控设备中选择一个作 为目标被控设备。 釆用何种选择目标被控设备的方式可由用户或者开发者自 行决定。
本发明实施例提供的控制设备还包括生成单元 505、 发送单元 506 : 所述 获取单元 501 ,还用于获取所述无线网络的当前无线信道环境模型; 所述生成 单元 505 , 用于才艮据所述当前无线信道环境模型, 生成所述无线网络中所述至 少一个被控设备中的每个被控设备的信道均衡器在直径模式下的抽头系数和 多径模式下的抽头系数; 所述发送单元 506 , 所述发送单元, 用于将所述至少 一个被控设备中的每个被控设备的信道均衡器在直径模式下的抽头系数和多 径模式下的抽头系数分别发送至对应的被控设备, 以使得所述每个被控设备 根据各自的信道均衡器在直径模式下的抽头系数计算得到所述第一信号接收 强度, 和根据各自的信道均衡器在多径模式下的抽头系数计算得到所述第二 信号接收强度。
为了实现本发明的技术方案, 在实际构建无线网络的过程中, 控制设备 还可以获取到当前的无线信道环境模型, 并且根据该当前无线信道环境模型, 生成无线网络中所述至少一个被控设备中的每个被控设备的信道均衡器在直 径模式下的抽头系数和多径模式下的抽头系数, 其中, 获取当前的无线信道 环境模型可以釆用参考信号估计、 最大似然估计、 盲估计等信道估计算法, 其具体实现方式不构成对本发明的限定; 将所述至少一个被控设备中的每个 被控设备的信道均衡器在直径模式下的抽头系数和多径模式下的抽头系数分 别发送至对应的被控设备。
可选的, 直径模式下直径分量的抽头系数所占权重最大, 权值远远大于 多径分量的抽头系数; 多径模式下直径分量的抽头系数权重较小, 或者权重 为 0 ,各多径分量的抽头系数权重较大。具体的抽头系数权重分配可根据室内 的无线信道环境模型进行设定, 无线信道环境模型包括多径衰落信道模型、 噪声造成的瑞利信道衰落模型以及其他 I SM频段干扰噪声的干扰模型等, 无 线信道环境与室内各电子设备的摆放位置、 室内家具设施的摆放位置、 房间 的格局以及所在小区的无线电干扰情况均有关系, 而且是时变的, 不同房间 对应的无线信道环境均不尽相同。
控制设备在配置的过程中对不同的被控设备可设置相同的直径模式和多 径模式下信道均衡器的抽头系数, 也可针对不同的被控设备设置不同的信道 均衡器的抽头系数。
由此, 本发明实施例实现了一台控制设备可以根据被控设备回传的信号 接收强度判断控制设备是否指向被控设备, 根据一般人们使用遥控器控制设 备的操作习惯, 用户手持控制设备指向哪个被控设备, 就代表了用户想要对 哪个被控设备进行控制, 因此本发明实施例通过判断控制设备是否指向被控 设备实现了基于短距离无线通信技术自动对用户想要控制的设备进行识别, 在多台被控设备中选择出目标被控设备, 提升用户体验效果。
图 6为本发明实施例提供的一种选择被控设备的控制设备示意图, 如图 所示, 该实施例提供的控制设备包括短距离无线通信芯片 601、 中央处理器 602、 接口 603和显示器件 606, 其中, 短距离无线通信芯片 601和中央处 理器 602通过总线 604和接口 603通信。短距离无线通信芯片 601中集成了 短距离无线通信收发天线、 信道均衡器, 甚至还可以集成一个短距离无线通 信芯片处理器。 本发明实施例提供的控制设备还可以包括存储器 605, 用于 存储程序代码, 并将该程序代码传输给中央处理器。 存储器可以包括易失 性存储器 (英文: volatile memory ) , 例如随机存取存储器 (英文: random-access memory, 缩写: RAM) ; 存储器也可以包括非易失性存储器 (英文: non-volat i le memory ),例如只读存储器(英文: read-only memory, 缩写: ROM) , 快闪存储器(英文: flash memory ) , 硬盘(英文: harddisk drive, 缩写: HDD )或固态硬盘(英文: solid-state drive, 缩写: SSD ); 存储器还可以包括上述种类的存储器的组合。 存储器 605通过总线 604与 中央处理器 602和接口 603相连接。
其中, 短距离无线通信芯片 601 ,用于获取所述至少一个被控设备中每个被控设 备在直径模式下的第一信号接收强度, 以及在多径模式下的第二信号接收强 度;
所述中央处理器 602 ,用于根据所述至少一个被控设备中每个被控设备的 第一信号接收强度与第二信号接收强度, 得到所述每个被控设备的信号接收 强度比;
所述中央处理器 602 ,用于根据所述至少一个被控设备中的每个被控设备 的信号接收强度比与所述被控设备对应的预设信号接收强度比, 判断所述控 制设备是否指向对应的被控设备;
所述中央处理器 602 ,用于从所述控制设备所指向的被控设备中,确定目 标被控设备;
所述显示器件 606 , 用于显示所述目标被控设备的控制界面。
可选的, 短距离无线通信芯片 601 在获取所述至少一个被控设备中每个 被控设备在直径模式下的第一信号接收强度, 以及在多径模式下的第二信号 接收强度之前, 还用于获取所述无线网络的当前无线信道环境模型; 所述中 央处理器 602 , 用于才艮据所述当前无线信道环境模型, 生成所述无线网络中所 述至少一个被控设备中的每个被控设备的信道均衡器在直径模式下的抽头系 数和多径模式下的抽头系数; 所述短距离无线通信芯片 601 , 用于将所述至少 一个被控设备中的每个被控设备的信道均衡器在直径模式下的抽头系数和多 径模式下的抽头系数分别发送至对应的被控设备, 以使得所述每个被控设备 根据各自的信道均衡器在直径模式下的抽头系数计算得到所述第一信号接收 强度, 和根据各自的信道均衡器在多径模式下的抽头系数计算得到所述第二 信号接收强度。
其中, 第一信号接收强度用来表征单位时间内被控设备对天线接收到的 电磁信号经过设置为直径模式抽头系数的均衡器处理后的信号的能量大小, 衡量指标可以为信号功率、 信号最大幅值、 信号峰-峰值等; 第二信号接收强 度用来表征单位时间内被控设备对天线接收到的电磁信号经过设置为多径模 式抽头系数的均衡器处理后的信号的能量大小, 衡量指标可以为信号功率、 信号最大幅值、 信号峰-峰值等。 第二信号接收强度的衡量指标必须与前述的 第一信号接收强度的衡量指标相同。
可选的, 短距离无线通信芯片 601用于获取所述至少一个被控设备中每 个被控设备在直径模式下的第一信号接收强度, 包括: 短距离无线通信芯片, 用于向所述至少一个被控设备广播所述数据, 并且向所述至少一个被控设备 分别发送请求报文; 接收所述至少一个被控设备中的每个被控设备发送的响 应报文, 所述响应报文包含所述被控设备的第一信号接收强度。
可选的, 短距离无线通信芯片 601用于获取所述至少一个被控设备中每 个被控设备在多径模式下的第二信号接收强度, 包括: 所述短距离无线通信 芯片 601 , 用于向所述至少一个被控设备广播所述数据, 并且向所述至少一 个被控设备分别发送请求报文; 接收所述至少一个被控设备中的每个被控设 备发送的响应报文, 所述响应报文包含所述被控设备的第二信号接收强度。
可选的, 短距离无线通信芯片用于获取所述至少一个被控设备中每个被 控设备在直径模式下的第一信号接收强度,包括:所述短距离无线通信芯片, 用于向所述至少一个被控设备广播多次数据; 获取每个被控设备在直径模式 下对应的多个信号接收强度, 对所述每个被控设备在直径模式下对应的多个 信号接收强度进行加权处理, 得到所述第一信号接收强度。
所述短距离无线通信芯片 601 用于获取所述至少一个被控设备中每个 被控设备在多径模式下的第二信号接收强度, 包括: 所述短距离无线通信芯 片用于向所述至少一个被控设备广播多次数据; 获取每个被控设备在多径模 式下对应的多个信号接收强度, 对所述每个被控设备在多径模式下对应的多 个信号接收强度进行加权处理, 得到所述第二信号接收强度。
也即, 控制设备可以重复执行上述操作, 并且在获取到每个被控设备对 应的多组直径模式下的信号接收强度数据和多组多径模式下的信号接收强度 数据后, 对数据进行加权平均处理, 由此可以避免在测试时由于信道的随机 突变或者强噪声干扰等原因导致测试数据的误差较大, 提高测试数据的可靠 性。 经过加权平均处理后, 得到最终的第一信号接收强度和第二信号接收强 度。
可选的, 对于每个被控设备, 其信号接收强度比有两种定义方式: 一种 是信号接收强度比为被控设备的第一信号接收强度与第二信号接收强度的比 值, 即被控设备的信号接收强度比; 另一种定义方式是信号接收强度比为被 控设备的第二信号接收强度与第一信号接收强度的比值, 即被控设备的信号 实际情况下只能釆用一种定义方式。
当每个被控设备的信号接收强度比, 为所述至少一个被控设备中每个被 控设备的第一信号接收强度与第二信号接收强度的比值时; 所述中央处理器 602 用于根据所述至少一个被控设备中的每个被控设备的信号接收强度比与 所述被控设备对应的预设信号接收强度比, 判断所述控制设备是否指向对应 的被控设备, 包括: 如果所述每个被控设备的信号接收强度比大于所述被控 设备对应的预设信号接收强度比, 则判断所述控制设备指向所述被控设备, 否则, 判断所述控制设备不指向所述被控设备;
当每个被控设备的信号接收强度比, 为所述至少一个被控设备中每个被 控设备的第二信号接收强度与第一信号接收强度的比值时; 中央处理器 602 用于根据所述至少一个被控设备中的每个被控设备的信号接收强度比与所述 被控设备对应的预设信号接收强度比, 判断所述控制设备是否指向对应的被 控设备, 包括: 如果所述每个被控设备的信号接收强度比小于所述被控设备 对应的预设信号接收强度比, 则判断所述控制设备指向所述被控设备, 否贝' J , 判断所述控制设备不指向所述被控设备。
可选的, 中央处理器 602 用于从所述控制设备所指向的被控设备中, 确 定目标被控设备, 包括: 判断出所述控制设备只指向一个被控设备, 则确定 所述指向的被控设备为目标被控设备; 或者判断出所述控制设备指向两个被 控设备, 向用户提示选择目标被控设备的信息, 根据所述用户的处理指令选 择所述两个被控设备中的一个被控设备作为目标被控设备; 或者判断出所述 控制设备指向大于两个的被控设备, 则重新执行所述的选择被控设备的方法, 或向用户提示选择目标被控设备的信息, 根据所述用户的处理指令选择所述 大于两个的被控设备中的一个被控设备作为目标被控设备。
当判断出控制设备只指向一个被控设备时, 则控制设备可自动弹出该目 标被控设备的控制界面, 以使用户对该被控设备进行相应的控制操作; 当判 断出控制设备指向两个被控设备时, 例如判断出控制设备同时指向机顶盒和 电视机, 则控制设备可向用户提示选择目标被控设备的信息, 其中提示的方 式可以为在控制设备的显示器件上显示操作界面的形式提示用户, 还可以为 控制设备播放语音、 或者显示文本、 或者显示图像等形式来提示用户, 由用 户根据该提示选择要对哪个被控设备进行控制, 控制设备可根据用户的操作 生成对应的处理指令, 并根据该处理指令选择对应的被控设备作为目标被控 设备, 并自动弹出该当前被控设备的控制界面, 以使用户对该被控设备进行 相应的控制操作。 另外, 除了向用户提示选择目标被控设备之外, 控制设备 还可以根据各个被控设备的优先级、 用户的偏好、 用户的使用习惯等自动选 择一个目标被控设备。
如果判断出控制设备指向大于两个的被控设备, 则可以说明选择被控设 备失败, 重新执行上述选择被控设备的方法, 或者还可以向用户提示选择目 标被控设备的信息, 由用户在所指向的被控设备中选择一个作为目标被控设 备。 釆用何种选择目标被控设备的方式可由用户或者开发者自行决定。
由此, 本发明实施例实现了一台控制设备可以根据被控设备回传的信号 接收强度判断控制设备是否指向被控设备, 根据一般人们使用遥控器控制设 备的操作习惯, 用户手持控制设备指向哪个被控设备, 就代表了用户想要对 哪个被控设备进行控制, 因此本发明实施例通过判断控制设备是否指向被控 设备实现了基于短距离无线通信技术自动对用户想要控制的设备进行识别, 在多台被控设备中选择出目标被控设备, 提升用户体验效果。
本发明实施例还提供了一种选择被控设备的系统, 所述系统植入了上述 选择被控设备的方法, 包括如图 5 所示的选择被控设备的控制设备, 以及至 少一个被控设备。 该系统中, 控制设备获取无线网络中每个被控设备在直径 模式下的第一信号接收强度, 以及在多径模式下的第二信号接收强度; 根据 每个被控设备的第一信号接收强度与第二信号接收强度, 得到每个被控设备 的信号接收强度比; 根据每个被控设备的信号接收强度比与所述被控设备对 应的预设信号接收强度比, 判断所述控制设备是否指向对应的被控设备; 从 控制设备所指向的被控设备中, 确定目标被控设备, 在控制设备上显示目标 被控设备的控制界面。 从而避免了用户需要自行选择被控设备的问题; 实现 了一台控制设备可以根据被控设备回传的信号接收强度判断控制设备是否指 向被控设备, 根据一般人们使用遥控器控制设备的操作习惯, 用户手持控制 设备指向哪个被控设备, 就代表了用户想要对哪个被控设备进行控制, 因此 本发明实施例通过判断控制设备是否指向被控设备实现了基于短距离无线通 信技术自动对用户想要控制的设备进行识别, 在多台被控设备中选择出目标 被控设备, 提升用户体验效果。
本发明实施例还提供了一种选择被控设备的系统, 所述系统植入了上述 选择被控设备的方法, 包括如图 6 所示的选择被控设备的控制设备, 以及至 少一个被控设备。 该系统中, 控制设备获取无线网络中每个被控设备在直径 模式下的第一信号接收强度, 以及在多径模式下的第二信号接收强度; 根据 每个被控设备的第一信号接收强度与第二信号接收强度, 得到每个被控设备 的信号接收强度比; 根据每个被控设备的信号接收强度比与所述被控设备对 应的预设信号接收强度比, 判断所述控制设备是否指向对应的被控设备; 从 控制设备所指向的被控设备中, 确定目标被控设备, 在控制设备上显示目标 被控设备的控制界面。 从而避免了用户需要自行选择被控设备的问题; 实现 了一台控制设备可以根据被控设备回传的信号接收强度判断控制设备是否指 向被控设备, 根据一般人们使用遥控器控制设备的操作习惯, 用户手持控制 设备指向哪个被控设备, 就代表了用户想要对哪个被控设备进行控制, 因此 本发明实施例通过判断控制设备是否指向被控设备实现了基于短距离无线通 信技术自动对用户想要控制的设备进行识别, 在多台被控设备中选择出目标 被控设备, 提升用户体验效果。
专业人员应该还可以进一步意识到, 结合本文中所公开的实施例描述的 各示例的单元及算法步骤, 能够以电子硬件、 计算机软件或者二者的结合来 实现, 为了清楚地说明硬件和软件的可互换性, 在上述说明中已经按照功能 一般性地描述了各示例的组成及步骤。 这些功能究竟以硬件还是软件方式来 执行, 取决于技术方案的特定应用和设计约束条件。 专业技术人员可以对每 个特定的应用来使用不同方法来实现所描述的功能, 但是这种实现不应认为 超出本发明的范围。
结合本文中所公开的实施例描述的方法或算法的步骤可以用硬件、 处理 器执行的软件模块, 或者二者的结合来实施。 软件模块可以置于随机存储器 ( RAM ) 、 内存、 只读存储器(ROM ) 、 电可编程 R0M、 电可擦除可编程 R0M、 寄存器、 硬盘、 可移动磁盘、 CD-R0M、 或技术领域内所公知的任意其它形式 的存储介质中。
以上所述的具体实施方式, 对本发明的目的、 技术方案和有益效果进行 了进一步佯细说明, 所应理解的是, 以上所述仅为本发明的具体实施方式而 已, 并不用于限定本发明的保护范围, 凡在本发明的精神和原则之内, 所做 的任何修改、 等同替换、 改进等, 均应包含在本发明的保护范围之内。

Claims

权 利 要 求 书
1、 一种选择被控设备的方法, 应用于一个控制设备和至少一个被控设备 组成的无线网络中, 其特征在于, 所述控制设备执行以下方法:
获取所述至少一个被控设备中每个被控设备在直径模式下的第一信号接 收强度, 以及在多径模式下的第二信号接收强度;
根据所述至少一个被控设备中每个被控设备的第一信号接收强度与第二 信号接收强度, 得到所述每个被控设备的信号接收强度比;
根据所述至少一个被控设备中的每个被控设备的信号接收强度比与所述 被控设备对应的预设信号接收强度比, 判断所述控制设备是否指向对应的被 控设备;
从所述控制设备所指向的被控设备中, 确定目标被控设备, 在所述控制 设备上显示所述目标被控设备的控制界面。
2、 根据权利要求 1所述的选择被控设备的方法, 其特征在于, 所述获取 所述至少一个被控设备中每个被控设备在直径模式下的第一信号接收强度, 以及在多径模式下的第二信号接收强度之前还包括:
获取所述无线网络的当前无线信道环境模型;
根据所述当前无线信道环境模型, 生成所述无线网络中所述至少一个被 控设备中每个被控设备的信道均衡器在直径模式下的抽头系数和多径模式下 的抽头系数;
将所述至少一个被控设备中的每个被控设备的信道均衡器在直径模式下 的抽头系数和多径模式下的抽头系数分别发送至对应的被控设备, 以使得所 述每个被控设备根据各自的信道均衡器在直径模式下的抽头系数计算得到所 述第一信号接收强度, 和根据各自的信道均衡器在多径模式下的抽头系数计 算得到所述第二信号接收强度。
3、 根据权利要求 1或 2所述的选择被控设备的方法, 其特征在于, 所述 获取所述至少一个被控设备中每个被控设备在直径模式下的第一信号接收强 度, 包括:
向所述至少一个被控设备广播数据, 并且向所述至少一个被控设备中的 每个被控设备发送请求报文;
接收所述至少一个被控设备中的每个被控设备发送的响应报文, 所述响 应报文包含所述被控设备的第一信号接收强度。
4、 根据权利要求 1-3任一项所述的选择被控设备的方法, 其特征在于, 所述获取所述至少一个被控设备中每个被控设备在多径模式下的第二信号接 收强度, 包括:
向所述至少一个被控设备广播数据, 并且向所述至少一个被控设备中的 每个被控设备发送请求报文;
接收所述至少一个被控设备中的每个被控设备发送的响应报文, 所述响 应报文包含所述被控设备的第二信号接收强度。
5、 根据权利要求 1所述的选择被控设备的方法, 其特征在于, 所述获取 所述至少一个被控设备中每个被控设备在直径模式下的第一信号接收强度, 包括:
向所述至少一个被控设备广播多次数据;
获取每个被控设备在直径模式下对应的多个信号接收强度, 对所述每个 被控设备在直径模式下对应的多个信号接收强度进行加权处理, 得到所述第 一信号接收强度;
所述获取所述至少一个被控设备中每个被控设备在多径模式下的第二信 号接收强度, 包括:
向所述至少一个被控设备广播多次数据;
获取每个被控设备在多径模式下对应的多个信号接收强度, 对所述每个 被控设备在直径模式下对应的多个信号接收强度进行加权处理, 得到所述第 二信号接收强度。
6、 根据权利要求 1-5任一项所述的选择被控设备的方法, 其特征在于, 所述每个被控设备的信号接收强度比, 为所述至少一个被控设备中每个 被控设备的第一信号接收强度与第二信号接收强度的比值;
所述根据所述至少一个被控设备中的每个被控设备的信号接收强度比与 所述被控设备对应的预设信号接收强度比, 判断所述控制设备是否指向对应 的被控设备, 包括: 如果所述每个被控设备的信号接收强度比大于所述被控 设备对应的预设信号接收强度比, 则判断所述控制设备指向所述被控设备, 否则, 判断所述控制设备不指向所述被控设备;
或者
所述每个被控设备的信号接收强度比, 为所述至少一个被控设备中每个 被控设备的第二信号接收强度与第一信号接收强度的比值;
所述根据所述至少一个被控设备中的每个被控设备的信号接收强度比与 所述被控设备对应的预设信号接收强度比, 判断所述控制设备是否指向对应 的被控设备, 包括: 如果所述每个被控设备的信号接收强度比小于所述被控 设备对应的预设信号接收强度比, 则判断所述控制设备指向所述被控设备, 否则, 判断所述控制设备不指向所述被控设备。
7、 根据权利要求 1-6任一项所述的选择被控设备的方法, 其特征在于, 所述从所述控制设备所指向的被控设备中, 确定目标被控设备, 包括:
判断出所述控制设备只指向一个被控设备, 则确定所述指向的被控设备 为目标被控设备; 或者
判断出所述控制设备指向两个被控设备, 向用户提示选择目标被控设备 的信息, 根据所述用户的处理指令选择所述两个被控设备中的一个被控设备 作为目标被控设备; 或者
判断出所述控制设备指向大于两个的被控设备, 则重新执行所述的选择 被控设备的方法, 或向用户提示选择目标被控设备的信息, 根据所述用户的 处理指令选择所述大于两个的被控设备中的一个被控设备作为目标被控设 备。
8、 一种选择被控设备的控制设备, 应用于一个控制设备和至少一个被控 设备组成的无线网络中, 其特征在于, 所述控制设备包括:
获取单元, 用于获取所述至少一个被控设备中每个被控设备在直径模式 下的第一信号接收强度, 以及在多径模式下的第二信号接收强度;
计算单元, 用于根据所述至少一个被控设备中每个被控设备的第一信号 接收强度与第二信号接收强度, 得到所述每个被控设备的信号接收强度比; 判断单元, 用于根据所述至少一个被控设备中的每个被控设备的信号接 收强度比与所述被控设备对应的预设信号接收强度比, 判断所述控制设备是 否指向对应的被控设备;
确定单元, 用于从所述控制设备所指向的被控设备中, 确定目标被控设 备, 在所述控制设备上显示所述目标被控设备的控制界面。
9、 根据权利要求 8所述的选择被控设备的控制设备, 其特征在于, 所述 控制设备还包括生成单元、 发送单元:
所述获取单元, 还用于获取所述无线网络的当前无线信道环境模型; 所述生成单元, 用于根据所述当前无线信道环境模型, 生成所述无线网 络中所述至少一个被控设备中每个被控设备的信道均衡器在直径模式下的抽 头系数和多径模式下的抽头系数;
所述发送单元, 用于将所述至少一个被控设备中的每个被控设备的信道 均衡器在直径模式下的抽头系数和多径模式下的抽头系数分别发送至对应的 被控设备, 以使得所述每个被控设备根据各自的信道均衡器在直径模式下的 抽头系数计算得到所述第一信号接收强度, 和根据各自的信道均衡器在多径 模式下的抽头系数计算得到所述第二信号接收强度。
10、 根据权利要求 8或 9所述的选择被控设备的控制设备, 其特征在于, 所述获取单元具体用于:
向所述至少一个被控设备广播所述数据, 并且向所述至少一个被控设备 分别发送请求报文; 接收所述至少一个被控设备中的每个被控设备发送的响应报文, 所述响 应报文包含所述被控设备的第一信号接收强度。
11、 根据权利要求 8-10任一项所述的选择被控设备的控制设备, 其特征 在于, 所述获取单元具体用于:
向所述至少一个被控设备广播所述数据, 并且向所述至少一个被控设备 分别发送请求报文;
接收所述至少一个被控设备中的每个被控设备发送的响应报文, 所述响 应报文包含所述被控设备的第二信号接收强度。
12、 根据权利要求 8 所述的选择被控设备的控制设备, 其特征在于, 所 述获取单元具体用于: 向所述至少一个被控设备广播多次数据; 获取每个被 控设备在直径模式下对应的多个信号接收强度, 对所述每个被控设备在直径 模式下对应的多个信号接收强度进行加权处理, 得到所述第一信号接收强度; 所述获取单元具体用于: 向所述至少一个被控设备广播多次数据; 获取 每个被控设备在多径模式下对应的多个信号接收强度, 对所述每个被控设备 在直径模式下对应的多个信号接收强度进行加权处理, 得到所述第二信号接 收强度。
1 3、 根据权利要求 8-12任一项所述的选择被控设备的控制设备, 其特征 在于, 所述每个被控设备的信号接收强度比, 为所述至少一个被控设备中每 个被控设备的第一信号接收强度与第二信号接收强度的比值; 所述判断单元 具体用于: 如果所述每个被控设备的信号接收强度比大于所述被控设备对应 的预设信号接收强度比, 则判断所述控制设备指向所述被控设备, 否则, 判 断所述控制设备不指向所述被控设备;
或者
所述每个被控设备的信号接收强度比, 为所述至少一个被控设备中每个 被控设备的第二信号接收强度与第一信号接收强度的比值;
所述判断单元具体用于: 如果所述每个被控设备的信号接收强度比小于 所述被控设备对应的预设信号接收强度比, 则判断所述控制设备指向所述被 控设备, 否则, 判断所述控制设备不指向所述被控设备。
14、 根据权利要求 8-1 3任一项所述的选择被控设备的控制设备, 其特征 在于, 所述确定单元具体用于:
判断出所述控制设备只指向一个被控设备, 则确定所述指向的被控设备 为目标被控设备; 或者
判断出所述控制设备指向两个被控设备, 向用户提示选择目标被控设备 的信息, 根据所述用户的处理指令选择所述两个被控设备中的一个被控设备 作为目标被控设备; 或者
判断出所述控制设备指向大于两个的被控设备, 则重新执行所述的选择 被控设备的方法, 或向用户提示选择目标被控设备的信息, 根据所述用户的 处理指令选择所述大于两个的被控设备中的一个被控设备作为目标被控设 备。
15、 一种选择被控设备的控制设备, 应用于一个控制设备和至少一个被 控设备组成的无线网络中, 其特征在于, 所述控制设备包括短距离无线通信 芯片、 中央处理器、 显示器件和接口, 所述短距离无线通信芯片和所述中 央处理器通过总线和所述接口通信; 其中,
所述短距离无线通信芯片, 用于获取所述至少一个被控设备中每个被控 设备在直径模式下的第一信号接收强度, 以及在多径模式下的第二信号接收 强度;
所述中央处理器, 用于根据所述至少一个被控设备中每个被控设备的第 一信号接收强度与第二信号接收强度, 得到所述每个被控设备的信号接收强 度比;
所述中央处理器, 用于根据所述至少一个被控设备中的每个被控设备的 信号接收强度比与所述被控设备对应的预设信号接收强度比, 判断所述控制 设备是否指向对应的被控设备; 所述中央处理器, 用于从所述控制设备所指向的被控设备中, 确定目标 被控设备;
所述显示器件, 用于显示所述目标被控设备的控制界面。
16、 根据权利要求 15所述的选择被控设备的控制设备, 其特征在于, 所 述短距离无线通信芯片在获取所述至少一个被控设备中每个被控设备在直径 模式下的第一信号接收强度, 以及在多径模式下的第二信号接收强度之前, 还用于获取所述无线网络的当前无线信道环境模型;
所述中央处理器, 用于根据所述当前无线信道环境模型, 生成所述无线 网络中所述至少一个被控设备中的每个被控设备的信道均衡器在直径模式下 的抽头系数和多径模式下的抽头系数;
所述短距离无线通信芯片, 用于将所述至少一个被控设备中的每个被控 设备的信道均衡器在直径模式下的抽头系数和多径模式下的抽头系数分别发 送至对应的被控设备, 以使得所述每个被控设备根据各自的信道均衡器在直 径模式下的抽头系数计算得到所述第一信号接收强度, 和根据各自的信道均 衡器在多径模式下的抽头系数计算得到所述第二信号接收强度。
17、 根据权利要求 15或 16所述的选择被控设备的控制设备, 其特征在 于, 所述短距离无线通信芯片用于获取所述至少一个被控设备中每个被控设 备在直径模式下的第一信号接收强度, 包括:
所述短距离无线通信芯片, 用于向所述至少一个被控设备广播所述数据, 并且向所述至少一个被控设备分别发送请求^艮文; 接收所述至少一个被控设 备中的每个被控设备发送的响应报文, 所述响应报文包含所述被控设备的第 一信号接收强度。
18、 根据权利要求 15-17任一项所述的选择被控设备的控制设备, 其特 征在于, 所述短距离无线通信芯片用于获取所述至少一个被控设备中每个被 控设备在多径模式下的第二信号接收强度, 包括:
所述短距离无线通信芯片, 用于向所述至少一个被控设备广播所述数 据, 并且向所述至少一个被控设备分别发送请求报文; 接收所述至少一个被 控设备中的每个被控设备发送的响应报文, 所述响应报文包含所述被控设备 的第二信号接收强度。
19、 根据权利要求 15所述的选择被控设备的控制设备, 其特征在于, 所 述短距离无线通信芯片用于获取所述至少一个被控设备中每个被控设备在 直径模式下的第一信号接收强度, 包括: 所述短距离无线通信芯片, 用于向 所述至少一个被控设备广播多次数据; 获取每个被控设备在直径模式下对应 的多个信号接收强度, 对所述每个被控设备在直径模式下对应的多个信号接 收强度进行加权处理, 得到所述第一信号接收强度;
所述短距离无线通信芯片用于获取所述至少一个被控设备中每个被控 设备在多径模式下的第二信号接收强度, 包括: 所述短距离无线通信芯片用 于向所述至少一个被控设备广播多次数据; 获取每个被控设备在多径模式下 对应的多个信号接收强度, 对所述每个被控设备在多径模式下对应的多个信 号接收强度进行加权处理, 得到所述第二信号接收强度。
20、 根据权利要求 15-19任一项所述的选择被控设备的控制设备, 其特 征在于, 所述每个被控设备的信号接收强度比, 为所述至少一个被控设备中 每个被控设备的第一信号接收强度与第二信号接收强度的比值; 所述中央处 理器用于根据所述至少一个被控设备中的每个被控设备的信号接收强度比与 所述被控设备对应的预设信号接收强度比, 判断所述控制设备是否指向对应 的被控设备, 包括: 如果所述每个被控设备的信号接收强度比大于所述被控 设备对应的预设信号接收强度比, 则判断所述控制设备指向所述被控设备, 否则, 判断所述控制设备不指向所述被控设备;
或者
所述每个被控设备的信号接收强度比, 为所述至少一个被控设备中每个 被控设备的第二信号接收强度与第一信号接收强度的比值;
所述中央处理器用于根据所述至少一个被控设备中的每个被控设备的信 号接收强度比与所述被控设备对应的预设信号接收强度比, 判断所述控制设 备是否指向对应的被控设备, 包括: 如果所述每个被控设备的信号接收强度 比小于所述被控设备对应的预设信号接收强度比, 则判断所述控制设备指向 所述被控设备, 否则, 判断所述控制设备不指向所述被控设备。
21、 根据权利要求 15-20任一项所述的选择被控设备的控制设备, 其特 征在于, 所述中央处理器用于从所述控制设备所指向的被控设备中, 确定目 标被控设备, 包括:
判断出所述控制设备只指向一个被控设备, 则确定所述指向的被控设备 为目标被控设备; 或者
判断出所述控制设备指向两个被控设备, 向用户提示选择目标被控设备 的信息, 根据所述用户的处理指令选择所述两个被控设备中的一个被控设备 作为目标被控设备; 或者
判断出所述控制设备指向大于两个的被控设备, 则重新执行所述的选择 被控设备的方法, 或向用户提示选择目标被控设备的信息, 根据所述用户的 处理指令选择所述大于两个的被控设备中的一个被控设备作为目标被控设 备。
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