WO2021134708A1 - 监护设备、无线通讯设备及接收方法 - Google Patents

监护设备、无线通讯设备及接收方法 Download PDF

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Publication number
WO2021134708A1
WO2021134708A1 PCT/CN2019/130957 CN2019130957W WO2021134708A1 WO 2021134708 A1 WO2021134708 A1 WO 2021134708A1 CN 2019130957 W CN2019130957 W CN 2019130957W WO 2021134708 A1 WO2021134708 A1 WO 2021134708A1
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Prior art keywords
signal
antenna
wireless communication
communication
controller
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PCT/CN2019/130957
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English (en)
French (fr)
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WO2021134708A8 (zh
Inventor
王衡
李向甲
陈长根
徐君
刘彬
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深圳迈瑞生物医疗电子股份有限公司
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Application filed by 深圳迈瑞生物医疗电子股份有限公司 filed Critical 深圳迈瑞生物医疗电子股份有限公司
Priority to CN201980098151.6A priority Critical patent/CN114175511A/zh
Priority to PCT/CN2019/130957 priority patent/WO2021134708A1/zh
Publication of WO2021134708A1 publication Critical patent/WO2021134708A1/zh
Publication of WO2021134708A8 publication Critical patent/WO2021134708A8/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line

Definitions

  • This application belongs to the technical field of medical devices, and in particular relates to a monitoring device, a wireless communication device, and a receiving method.
  • the monitoring device and the wireless communication device need to communicate to transmit related data and instructions.
  • the monitoring device and the wireless communication device need to communicate to transmit related data and instructions.
  • packet loss in wireless communication equipment or monitoring equipment, which affects the normal operation of the wireless medical telemetry system.
  • the technical problem to be solved by this application is how to reduce the possibility of packet loss of wireless communication equipment and monitoring equipment during wireless transmission.
  • the wireless communication device includes a controller, a first transceiving circuit, and a second transceiving circuit, and the first transceiving circuit and the second transceiving circuit are respectively connected to the controller.
  • the first transceiving circuit and the second transceiving circuit work at the same frequency, and are used to respectively communicate with external devices wirelessly and simultaneously receive signals from the external device; the first transceiving circuit is used to receive and demodulate the The first signal is generated from the signal of the external device, and the second transceiver circuit is used to receive and demodulate the signal of the external device to generate the second signal.
  • the controller is used to perform data verification on the first signal and the second signal to obtain a signal with normal information in the first signal and the second signal, and select the normal signal as the slave of the wireless communication device The final signal acquired by the external device.
  • the controller is also used to send a signal that the information is normal to the remote monitoring center device.
  • the controller is further configured to compare the signal strength of the first signal and the second signal when the first signal and the second signal are both normal signals, and compare the signal strengths of the first signal and the second signal.
  • the signal with higher signal strength among the first signal and the second signal is used as the final signal obtained by the wireless communication device from the external device.
  • the controller is further configured to skip the data verification step when the first signal and the second signal are both abnormal signals; compare the first signal with the first signal The signal strength of the second signal, and the signal with the higher signal strength of the first signal and the second signal is used as the final signal obtained by the wireless communication device from the external device.
  • the first transceiver circuit includes a first modem, a first radio frequency link, and a first antenna connected in sequence.
  • the first antenna is used to receive the signal sent by the external device;
  • the first radio frequency link is used to at least filter the signal received by the first antenna;
  • the first modem is used to filter the filtered signal
  • the signal is demodulated to obtain the first signal, and the first signal is transmitted to the controller.
  • the second transceiver circuit includes a second modem, a second radio frequency link, and a second antenna connected in sequence.
  • the second antenna is used to receive the signal sent by the external device;
  • the second radio frequency link is used to at least filter the signal received by the second antenna;
  • the second modem is used to filter the filtered signal
  • the signal is demodulated to obtain the second signal, and the second signal is transmitted to the controller.
  • the controller is further configured to send a communication signal through the first transceiving circuit or the second transceiving circuit corresponding to the final signal.
  • the present application also provides another wireless communication device, including: a first antenna, a second antenna, and a controller, a modem, a radio frequency link, and a switch connected in sequence; wherein the switch is used to selectively turn on the The first antenna or the second antenna.
  • the first antenna and the second antenna are used to obtain signals from external devices when they are turned on.
  • the radio frequency link is used at least to filter signals received by the first antenna and the second antenna.
  • the modem is used to demodulate the signals received by the first antenna and the second antenna to generate a first signal and a second signal, respectively.
  • the controller is used to compare the demodulated first signal and the second signal to obtain a signal with a higher signal strength in the first signal and the second signal, and pass the signal with a higher signal strength
  • the antenna corresponding to the signal to send and receive signals.
  • the controller is further configured to send the received first signal or the second signal to a remote monitoring center device.
  • the controller is also used to transmit a communication signal
  • the modem is used to modulate the communication signal to generate and transmit the communication through an antenna corresponding to the signal with higher signal strength. signal.
  • the present application also provides a monitoring device, including: a first antenna, a second antenna, and a controller, a modem, a radio frequency link, and a switch connected in sequence; wherein the switch is used to selectively turn on the first antenna; The antenna or the second antenna.
  • the first antenna and the second antenna are used to respectively obtain communication signals of the wireless communication device when they are turned on.
  • the radio frequency link is used at least to filter communication signals received by the first antenna and the second antenna.
  • the modem is used to demodulate the communication signals received by the first antenna and the second antenna to generate a first communication signal and a second communication signal, respectively.
  • the controller is used to compare the demodulated first communication signal and the second communication signal to obtain a signal with higher signal strength among the first communication signal and the second communication signal, and pass the The antenna corresponding to the signal with higher signal strength sends and receives the signal.
  • the monitoring device further includes a parameter acquisition component for collecting parameter information of the target object, and the controller is also used to use the parameter information and/or alarm information of the target object as signal content, and pass the The modem generates a parameter signal; the parameter signal is transmitted through the radio frequency link, the switch, and the first antenna or the second antenna in sequence.
  • the distance between the first antenna and the second antenna is one-quarter wavelength or one-half wavelength.
  • the present application also provides another monitoring device, including: a controller, a first transceiver circuit and a second transceiver circuit, the first transceiver circuit and the second transceiver circuit are respectively connected to the controller.
  • the first transceiving circuit and the second transceiving circuit work at the same frequency, and are used to respectively communicate with wireless communication equipment and simultaneously receive signals from the wireless communication equipment; the first transceiving circuit is used to receive and demodulate The signal of the wireless communication device generates a first communication signal, and the second transceiver circuit is used to receive and demodulate the signal of the wireless communication device to generate a second communication signal.
  • the controller is used to perform data verification on the first communication signal and the second communication signal to obtain a signal with normal information in the first communication signal and the second communication signal as the monitoring device from the wireless communication The final signal acquired by the device.
  • the controller is further configured to compare the signal strength of the first communication signal and the second communication signal when the first communication signal and the second communication signal are both normal signals And use a signal with a higher signal strength among the first communication signal and the second communication signal as the final signal obtained by the monitoring device from the wireless communication device.
  • the controller is further configured to skip the data verification step when the first communication signal and the second communication signal are both abnormal signals; compare the first communication signal and The signal strength of the second communication signal, and the signal with the higher signal strength of the first communication signal and the second communication signal is used as the final signal obtained by the monitoring device from the wireless communication device.
  • the first transceiver circuit includes a first modem, a first radio frequency link, and a first antenna connected in sequence.
  • the first antenna is used to receive a signal sent by an external device; the first radio frequency link is used to at least filter the signal received by the first antenna; the first modem is used to perform filtering on the filtered signal.
  • the first communication signal is obtained by demodulation, and the demodulated first communication signal is transmitted to the controller.
  • the second transceiver circuit includes a second modem, a second radio frequency link, and a second antenna connected in sequence.
  • the second antenna is used to receive signals sent by external devices; the second radio frequency link is used to at least filter the signals received by the second antenna; the second modem is used to perform filtering on the filtered signals.
  • the second communication signal is obtained by demodulation, and the demodulated second communication signal is transmitted to the controller.
  • the controller is further configured to send a signal through the first transceiving circuit or the second transceiving circuit corresponding to the final signal.
  • This application also provides a receiving method for use in a wireless medical remote sensing system.
  • the receiving method includes:
  • the first transceiving circuit and the second transceiving circuit working at the same frequency respectively simultaneously receive signals from the external device.
  • the first signal is obtained by demodulating the received signal by the first transceiving circuit
  • the second signal is obtained by demodulating the received signal by the second transceiving circuit
  • the signal strengths of the first signal and the second signal are compared.
  • the signal with the higher signal strength among the first signal and the second signal is used as the final signal obtained from the external device.
  • This application also provides another receiving method, including:
  • the first antenna and the second antenna are used to receive signals from external devices, respectively.
  • the signal received by the first antenna is processed to obtain a first signal
  • the signal received by the second antenna is processed to obtain a second signal.
  • the external device is a wireless communication device or a monitoring device.
  • two transceiver circuits are provided for receiving signals respectively.
  • the two transceiver circuits are applied to wireless communication equipment, it is ensured that the wireless communication equipment can receive signals sent by external equipment in a timely and accurate manner;
  • the circuit is applied to the monitoring device, it is ensured that the monitoring device can maintain the communication connection with the wireless communication device to receive the communication signal.
  • the present application also provides a switchable dual antenna structure.
  • the wireless communication device can switch the antenna that receives the signal to receive the signal sent by the external device in a timely and accurate manner;
  • the monitoring device can switch the antenna that receives the signal and maintain the communication connection with the wireless communication device to receive the communication signal.
  • This application also uses the receiving method for the wireless medical remote sensing system to enable the wireless communication equipment and monitoring equipment to receive signals in a timely and accurate manner during the wireless communication process, so as to ensure that the wireless communication equipment and the monitoring equipment are acquiring signals.
  • the signal content is not limited to the Bluetooth Special Interest Group (SIG)
  • Fig. 1 is a framework diagram of a wireless communication device provided by an embodiment of the present application.
  • Fig. 2 is a schematic diagram of another wireless communication device provided by an embodiment of the present application.
  • Fig. 3 is a frame diagram of a monitoring device provided by an embodiment of the present application.
  • Fig. 4 is a schematic diagram of another monitoring device provided by an embodiment of the present application.
  • Fig. 5 is a flowchart of a receiving method provided by an embodiment of the present application.
  • Fig. 6 is a flowchart of another receiving method provided by an embodiment of the present application.
  • the wireless communication equipment transmits signals through a fixed frequency band, such as electrocardiogram parameters (ECG), blood oxygen saturation parameters (SpO2), non-invasive Parameters such as blood pressure parameters (NIBP) and alarm information for each parameter are sent to the wireless communication device, and the wireless communication device sends these data to the remote monitoring center device.
  • ECG electrocardiogram parameters
  • SpO2 blood oxygen saturation parameters
  • NIBP blood pressure parameters
  • the medical staff analyzes the physical state of the target object according to the parameters and alarm information to determine the subsequent operations that need to be performed.
  • some of the parameter types that need to be paid attention to may include ECG parameters
  • the other part of the parameter types that need to be paid attention to may include The blood oxygen saturation parameters and blood pressure parameters.
  • different target objects may be equipped with monitoring equipment of different types or manufactured by different manufacturers.
  • the signal is transmitting
  • the multipath effect in the process is also more serious.
  • the wirelessly transmitted signal may be rapidly attenuated, resulting in frequent packet loss, distortion, or unreception of the signal received by the normal wireless communication device from the monitoring device.
  • each embodiment of the present application provides a wireless communication device (10a, 10b), a monitoring device (20a, 20b), and a receiving method.
  • the wireless communication device 10a and the monitoring device 20a can each receive signals through two transceiving circuits, so as to filter out the signal with the higher intensity of the two received signals.
  • the wireless communication device 10b and the monitoring device 20b are configured with two switchable antennas, and the distance between the two antennas may be, for example, a quarter wavelength or a half wavelength. In the case of poor reception on one antenna, you can switch to another antenna for reception. Since there is a quarter or half cycle phase difference between the two antennas, when the signal is received through another antenna, the possibility of receiving the signal by the antenna can be increased, and the influence of the multipath effect on the signal transmission can be reduced. .
  • the parameter information and alarm information obtained by the monitoring device from the target object can be timely and accurately transmitted to the wireless communication device (10a, 10b) for the medical staff to call, view, analyze or perform other operations;
  • the device (20a, 20b) can receive the communication signal sent by the wireless communication device in a timely and accurate manner.
  • the target object of high blood pressure monitors the changes of blood pressure parameters through the monitoring device
  • the blood pressure value of the target object of high blood pressure is too high and it is easy to trigger the alarm of the monitoring device every time.
  • An alarm will generate an alarm message.
  • the blood pressure parameters and alarm information of the target object need to be sent to the wireless communication device in time for the wireless communication device to forward, for example, to the remote monitoring center equipment.
  • the medical staff of the remote monitoring center equipment can view the parameter information and alarm information of the target object to obtain the blood pressure change of the target object in real time.
  • the wireless communication equipment (10a, 10b), monitoring equipment (20a, 20b), and receiving method in each embodiment of the present application are also aimed at the problem of unstable signal transmission. The following will compare the wireless communication equipment (10a) of the present application. , 10b) and monitoring equipment (20a, 20b) are introduced in detail.
  • a wireless communication device 10a provided by an embodiment of the present application includes: a controller 100, a first transceiver circuit 110a, and a second transceiver circuit 110b.
  • the first transceiving circuit 110a and the second transceiving circuit 110b are respectively connected to the controller 100 to transmit the signals respectively received to the controller 100, thereby enabling wireless communication with external devices including monitoring equipment.
  • the first transceiver circuit 110a and the second transceiver circuit 110b of the wireless communication device 10a are generally set to work at the same frequency. At the same time, it receives signals sent by external devices. For the same signal sent by the device, the first transceiver circuit 110a senses and generates a first signal, and the second transceiver circuit 110b senses and generates a second signal. The first signal and the second signal are transmitted to the control of the wireless communication device 10a. ⁇ 100 ⁇ .
  • the controller 100 can check the first signal and the second signal through a data check algorithm to determine which of the first signal and the second signal is a signal with normal information, and then the controller 100 will check the information as normal.
  • the signal serves as the final signal obtained from the external device.
  • Subsequent wireless communication device 10a can send a signal indicating that the information is normal to other devices.
  • the controller 100 may transmit the final signal through a switch or other equipment; or, the controller 100 may transmit the signal that the information is normal through the first transceiving circuit 110a or the second transceiving circuit 110b corresponding to the final signal.
  • the wireless communication device 10a Compared with a normal wireless communication device, the wireless communication device 10a provided in this embodiment can perform signal transmission according to two relatively independently working transceiver circuits (110a, 110b). Therefore, the signal receiving capability of the wireless communication device 10a can be improved, so as to reduce the possibility of signal packet loss, distortion or interruption. As a result, the medical staff can receive the parameter information and alarm information of the current target object in a timely and accurate manner. In some cases, based on the signals obtained in time, medical staff can rescue the target in the emergency situation in the shortest time without delaying the rescue opportunity.
  • the controller 100 is also used to compare the signal strength of the first signal and the second signal, such as analyzing the signal strength of the first signal and the second signal. Signal-to-noise ratio.
  • the wireless communication device 10a can obtain a signal with a higher signal strength, and use the signal with a higher signal strength as the final signal obtained by the wireless communication device 10a from an external device; the subsequent wireless communication device 10a can transmit the signal with higher strength signal.
  • the controller 100 may determine that the data verification step may be unreasonable. Therefore, the controller 100 skips the step of data verification, and compares the signal strength of the first signal and the second signal, so as to obtain the signal with the higher signal strength of the first signal and the second signal, and compare the signal The signal with higher strength is used as the final signal obtained by the wireless communication device 10a from the external device; the subsequent wireless communication device 10a can send the signal with higher strength.
  • the medical staff view the parameter information of the corresponding signal in the remote monitoring center, if the parameter information is displayed normally, it can be determined that the data verification is unreasonable and needs to be adjusted; if the parameter information is not displayed normally, it can be determined that the wireless communication device 10a is faulty , And notify the technician to perform maintenance.
  • the first signal is taken as an example with normal information and high signal strength.
  • the monitoring device converts the parameter information of the target object into electrical information through the parameter acquisition component, for example, the electrical information is blood pressure parameters.
  • the monitoring equipment processes the electrical information of blood pressure parameters through steps such as modulation, mixing, amplification, and filtering, and then sends it to the outside space in the form of electromagnetic wave signals through an antenna.
  • the first transceiving circuit 110a and the second transceiving circuit 110b of the wireless communication device 10a respectively receive the electromagnetic wave signal, and after processing through filtering, amplifying, mixing, and demodulating, the first signal and the second signal are obtained accordingly.
  • the first signal and the second signal can be transmitted to the controller 100 through the data bus, and the controller 100 performs a data check on the first signal and the second signal to determine whether the signal content in the first signal and the second signal includes The blood pressure parameters of the target subject.
  • the controller 100 selects the first signal as the final signal to perform the transmission operation.
  • the check value obtained after the data check of the second signal is the same as the predetermined check value.
  • the controller 100 compares the signal strength of the first signal and the second signal, and determines that the signal strength of the first signal is higher than the signal strength of the second signal. Thus, the controller 100 selects the first signal as the final signal to perform the transmission operation.
  • the second signal may also be used as a signal with normal information and high signal strength, which will not be repeated.
  • the first transceiver circuit 110a may include a first modem 112a, a first radio frequency link 114a, and a first antenna 116a connected in sequence.
  • the first antenna 116a can receive a signal sent by an external device, and the first radio frequency link 114a can perform processing such as filtering, amplifying, and mixing the received signal to reduce the noise of the received signal.
  • the first modem 112a may demodulate the processed signal to obtain the signal content in the signal and generate the first signal.
  • the second transceiving circuit 110b may include a second modem 112b, a second radio frequency link 114b, and a second antenna 116b connected in sequence.
  • the second antenna 116b can receive a signal sent by an external device, and the second radio frequency link 114b can perform processing such as filtering, amplifying, and mixing the received signal to reduce the noise of the received signal.
  • the second modem 112b may demodulate the processed signal to obtain signal content in the signal and generate a second signal.
  • the wireless communication device 10a may also transmit communication signals through the first transceiver circuit 110a or the second transceiver circuit 110b corresponding to the final signal. For example, if the final signal is the first signal received by the first transceiver circuit 110a, the wireless communication device 10a transmits the communication signal through the first transceiver circuit 110a. By analogy, if the final signal is the second signal received by the second transceiver circuit 110b, the wireless communication device 10a transmits the communication signal through the second transceiver circuit 110b.
  • the embodiment of the present application also provides another wireless communication device 10b, similar to the wireless communication device 10a in the above embodiments, the wireless communication device 10b can be switched by setting the first antenna 126a and the second antenna 126a.
  • the antenna 126b receives the signal sent by the external device.
  • the wireless communication device 10b in each embodiment takes the signal sent by the monitoring device as an example for description.
  • the wireless communication device 10b includes at least: a controller 100, a modem 122, a radio frequency link 124, a switch K1, a first antenna 126a, and a second antenna 126b.
  • the controller 100, the modem 122, the radio frequency link 124, and the switch K1 are sequentially connected, and the switch K1 is used to selectively turn on the first antenna 126a or the second antenna 126b.
  • the switch K1 is a single-pole double-throw switch.
  • the fixed end of the switch K1 is connected to the radio frequency link 124, and the movable end can be selectively connected to the first antenna 126a or the second antenna 126b, thereby turning on the first antenna 126a or the second antenna 126a.
  • Antenna 126b Antenna 126b.
  • the movable end of the switch K1 can select one of the first antenna 126a and the second antenna 126b to be connected to the radio frequency link 124.
  • first antenna 126a and/or the second antenna 126b when the first antenna 126a and/or the second antenna 126b are connected to the radio frequency link 124 through the switch K1, relevant signals can be sent and received, and they are in an on state. In this way, the first antenna 126a and the second antenna 126b can respectively receive signals from external devices when they are turned on.
  • the switch K1 When the switch K1 is switched to connect with the first antenna 126a, the first antenna 126a receives the signal sent by the monitoring device, and the signal received by the first antenna 126a is filtered, amplified, mixed and decoded through the radio frequency link 124 and the modem 122 in turn. The first signal is generated after adjustment and processing, and then transmitted to the controller 100.
  • the switch K1 When the switch K1 is switched to be connected to the second antenna 126b, the second antenna 126b receives the signal sent by the external device. The signal received by the second antenna 126b sequentially passes through the shared radio frequency link 124 and the modem 122 to perform filtering, amplifying, mixing, and demodulating processes to generate a second signal, and then is also transmitted to the controller 100.
  • the switch K1 can select one of the first antenna 126a and the second antenna 126b to be connected to the radio frequency link, so that the first antenna 126a and the second antenna 126b receive signals sequentially and pass through the radio frequency link 124 and The modem 122 sequentially generates the first signal and the second signal.
  • the controller 100 of the wireless communication device 10b compares the signal strength of the first signal and the second signal to determine which of the first antenna 126a and the second antenna 126b receives the better signal, and then controls the switch K1 and The antenna is connected to receive signals and transmit related signals.
  • the wireless communication device 10b first compares the signal strengths of the first signal and the second signal when receiving.
  • the controller 100 determines that the signal strength of the first signal received through the first antenna 126a is high, and controls the switch K1 to switch to be connected to the first antenna 126a, and receives signals and transmits related signals through the first antenna 126a.
  • the wireless communication device 10b can ensure that the acquired signal is a normal signal, and the signal contains content such as parameter information and alarm information of the target object. Subsequently, the wireless communication device 10b may send the received signal to the remote monitoring center device 30 for medical personnel to consult.
  • a monitoring device 20a provided by an embodiment of the present application, similar to the structure of the wireless communication device 10a in some of the above embodiments, the monitoring device 20a through the controller 200 and the first transceiver connected to the controller 200 respectively
  • the circuit 210a and the second transceiving circuit 210b implement the reception of signals from various types of wireless communication devices.
  • the first transceiving circuit 210a and the second transceiving circuit 210b of the monitoring device 20a are set to work at the same frequency, so as to simultaneously receive the same signal sent by the wireless communication device.
  • the first transceiving circuit 210a senses and generates a first communication signal
  • the second transceiving circuit 210b senses and generates a second communication signal.
  • the first communication signal and the second communication signal are transmitted to the controller 200 of the monitoring device 20a.
  • the controller 200 can check the first communication signal and the second communication signal through a data check algorithm to determine which of the first communication signal and the second communication signal is a signal with normal information;
  • the signal with normal information is used as the final signal obtained from the wireless communication device.
  • the monitoring device 20a Compared with a normal monitoring device, the monitoring device 20a provided in this embodiment can perform signal transmission according to two relatively independently working transceiver circuits (210a, 210b). Therefore, the signal receiving capability of the monitoring device 20a can be improved, so as to reduce the possibility of signal packet loss, distortion or interruption.
  • the controller 200 when both the first communication signal and the second communication signal are determined to be normal signals, the controller 200 is also used to compare the signal strength of the first communication signal and the second communication signal, such as analyzing the first communication signal And the signal-to-noise ratio of the second communication signal.
  • the monitoring device 20a can obtain a signal with a higher signal strength, and use the signal with a higher signal strength as the final signal obtained by the monitoring device 20a from the wireless communication device.
  • the controller 200 may determine that the data verification step may be unreasonable. Therefore, the controller 200 skips the step of data verification, and compares the signal strength of the first communication signal and the second communication signal, so as to obtain the signal with the higher signal strength of the first communication signal and the second communication signal. The signal with higher signal strength is used as the final signal obtained by the monitoring device 20a from the wireless communication device.
  • the monitoring device 20a performs related operations in response to the communication signal, it can be determined that the data verification is unreasonable and needs to be adjusted; if the monitoring device 20a does not respond to the communication signal and performs related operations, it can be determined that the monitoring device 20a is faulty and notified Technicians come to perform maintenance.
  • the first communication signal is a signal with normal information and high signal strength.
  • the wireless communication equipment converts the communication instructions into electrical information, and processes them through the steps of modulation, mixing, amplification and filtering, and then uses the antenna to send them to the outside space in the form of electromagnetic wave signals.
  • the first transceiving circuit 210a and the second transceiving circuit 210b of the monitoring device 20a respectively receive the electromagnetic wave signal, and after processing through filtering, amplifying, mixing, and demodulating, the first communication signal and the second communication signal are obtained accordingly .
  • the first communication signal and the second communication signal can be transmitted to the controller 200 through the data bus, and the controller 200 performs data verification on the first communication signal and the second communication signal to determine whether the first communication signal and the second communication signal are Whether the signal content includes the blood pressure parameters of the target object.
  • the check value obtained after the data check of the second communication signal is different from the predetermined check value, and it is determined that the second communication signal received through the second transceiver circuit 210b is lost; that is, the second The communication signal does not actually include the communication instructions of the wireless communication device.
  • the controller 200 obtains the signal content of the first communication signal to perform related operations.
  • the check value obtained after the data check of the second communication signal is the same as the predetermined check value.
  • the controller 200 compares the signal strength of the first communication signal and the second communication signal, and determines that the signal strength of the first communication signal is higher than the signal strength of the second communication signal. Thus, the controller 200 obtains the signal content of the first communication signal to perform related operations.
  • the second communication signal may also be used as a signal with normal information and high signal strength, which will not be repeated.
  • the first transceiver circuit 210a may include a first modem 212a, a first radio frequency link 214a, and a first antenna 216a connected in sequence.
  • the first antenna 216a can receive the signal sent by the wireless communication device, and the first radio frequency link 214a can filter, amplify, and mix the received communication signal to reduce the noise of the received communication signal.
  • the first modem 212a may demodulate the processed communication signal to obtain signal content in the signal and generate the first communication signal.
  • the second transceiving circuit 210b may include a second modem 212b, a second radio frequency link 214b, and a second antenna 216b connected in sequence.
  • the second antenna 216b can receive the signal sent by the wireless communication device, and the second radio frequency link 214b can filter, amplify, and mix the received communication signal to reduce the noise of the received communication signal.
  • the second modem 212b may demodulate the processed communication signal to obtain signal content in the signal and generate a second communication signal.
  • the monitoring device 20a may also send signals through the first transceiver circuit 210a or the second transceiver circuit 210b. For example, if the final signal is the first signal received by the first transceiver circuit 210a, the monitoring device 20a transmits the signal through the first transceiver circuit 210a. By analogy, if the final signal is the second signal received by the second transceiver circuit 210b, the monitoring device 20a transmits the signal through the second transceiver circuit 110b.
  • the embodiment of the present application also provides another monitoring device 20b, the monitoring device 20b can receive the communication signal sent by the wireless communication device, obtain the parameter information of the target object through the parameter acquisition component 40, and send the target object loaded The parameter information and/or the parameter signal of the alarm information are sent to the wireless communication device.
  • the monitoring device 20b in each embodiment of the present application is provided with a switchable first antenna 226a and a second antenna 226b to receive the communication signal sent by the wireless communication device and send related signals. .
  • the monitoring device 20b includes at least: a controller 200, a modem 222, a radio frequency link 224, a switch K2, a first antenna 226a, and a second antenna 226b.
  • the controller 200, the modem 222, the radio frequency link 224, and the switch K2 are connected in sequence, and the switch K2 is used to selectively turn on the first antenna 226a or the second antenna 226b.
  • the switch K2 is a single-pole double-throw switch K2.
  • the first antenna 226a and the second antenna 226b can receive signals from the external space when they are turned on.
  • the monitoring device 20b receives the communication signal sent by the wireless communication device as an example. However, it should also be understood that the monitoring device 20b in each embodiment may also implement data mutual transmission or data aggregation among multiple monitoring devices.
  • the switch K2 When the switch K2 is switched to connect with the first antenna 226a, the first antenna 226a receives the communication signal, and the communication signal received by the first antenna 226a is filtered, amplified, mixed and demodulated through the radio frequency link 224 and the modem 222 in turn. After processing, the first communication signal is generated, and then transmitted to the controller 200.
  • the switch K2 is switched to be connected to the second antenna 226b, the second antenna 226b receives the communication signal. The communication signal received by the second antenna 226b is sequentially filtered, amplified, mixed and demodulated through the radio frequency link 224 and the modem 222 to generate a second communication signal, and then is transmitted to the controller 200.
  • the controller 200 of the monitoring device 20b compares the signal strength of the first communication signal and the second communication signal to determine which of the first antenna 226a and the second antenna 226b receives the better signal, and then controls the switch K2 Connect with the antenna to receive communication signals and transmit related signals.
  • the monitoring device 20b when the monitoring device 20b first receives the communication signal, it first compares the signal strength of the first communication signal and the second communication signal.
  • the controller 200 determines that the signal strength of the first communication signal received through the first antenna 226a is high, and the control switch K2 is switched to be connected to the first antenna 226a, and the first antenna 226a receives the communication signal and transmits related signals.
  • the monitoring device 20b can receive the communication signal of the wireless communication device in time, and perform related operations according to the signal content contained in the communication signal.
  • the embodiment of the present application also provides a receiving method corresponding to the above wireless communication device (10a, 10b) or monitoring device (20a, 20b), these receiving methods are applied in the wireless medical telemetry system , And used to realize the reception of signals sent by wireless communication equipment or monitoring equipment.
  • a receiving method provided by the embodiments of the present application includes but not limited to the following steps:
  • S101 Simultaneously receive a signal from an external device through the first transceiving circuit and the second transceiving circuit operating at the same frequency.
  • the first transceiving circuit may refer to the first transceiving circuit 110a of the wireless communication device 10a in the foregoing embodiment, or refer to the first transceiving circuit 210a of the monitoring device 20a.
  • the second transceiving circuit may refer to the second transceiving circuit 110b of the wireless communication device 10a in the foregoing embodiment, or refer to the second transceiving circuit 210b of the monitoring device 20a, which is not limited.
  • S102 Obtain the first signal by demodulating the received signal by the first transceiver circuit, and obtain the second signal by demodulating the received signal by the second transceiver circuit.
  • the first transceiver circuit may perform processing such as filtering, amplifying, mixing, and demodulating the received signal to obtain the first signal.
  • the second transceiver circuit can filter, amplify, mix, and demodulate the received signal to obtain the second signal.
  • the receiving method further includes:
  • S103 Perform data verification on the first signal and the second signal to obtain a signal with normal information in the first signal and the second signal, and select the normal signal as the final signal obtained from the external device.
  • the receiving method provided by the embodiment of the present application sets the first transceiving circuit and the second transceiving circuit to work at the same frequency to simultaneously receive and process the same signal sent by the external device, thereby reducing signal packet loss. , Distortion or interruption.
  • the receiving method provided by the embodiment of the present application further includes: when both the first signal and the second signal are determined to be normal signals, comparing the signal strength of the first signal and the second signal, such as analyzing the signal strength of the first signal and the second signal. Signal-to-noise ratio. In this way, a signal with a higher signal strength can be obtained, and the signal with a higher signal strength can be used as the final signal obtained from the external device.
  • the final signal is a signal with higher signal strength among the first signal and the second signal, it is convenient to perform related processing on the final signal later; for example, sending the final signal, or according to the signal content of the final signal. Perform related operations.
  • the receiving method provided by the embodiment of the present application further includes: when both the first signal and the second signal are determined to be abnormal signals, the step of preliminarily determining that the data verification is unreasonable. Therefore, the step of data verification is skipped, and the signal strength of the first signal and the second signal are compared to obtain the signal with the higher signal strength of the first signal and the second signal, and the signal strength is higher The signal as the final signal obtained from the external device.
  • the first signal is taken as an example with normal information and high signal strength.
  • the electromagnetic wave signal sent by the external device is received through the first transceiver circuit and the second transceiver circuit, and processed through the steps of filtering, amplifying, mixing and demodulation, and then the first signal and the second signal are obtained correspondingly, and the data is passed through
  • the verification algorithm performs data verification on the first signal and the second signal.
  • the check value obtained after the data check of the second signal is different from the predetermined check value, and it is determined that the second signal received through the second transceiver circuit is lost; that is, the second signal is actually combined
  • the complete signal content is not included.
  • the first signal is selected as the final signal.
  • the check value obtained after the data check of the second signal is the same as the predetermined check value. Then compare the signal strength of the first signal and the second signal, and determine that the signal strength of the first signal is higher than the signal strength of the second signal. Thus, the first signal is selected as the final signal.
  • an embodiment of the present application also provides another receiving method, which corresponds to the wireless communication device 10b or the monitoring device 20b in the foregoing embodiments.
  • Another receiving method provided by the embodiment of the present application includes but is not limited to the following steps:
  • S201 Receive a signal from an external device through the first antenna and the second antenna respectively.
  • the first antenna may refer to the first antenna 126a of the wireless communication device 10b in the foregoing embodiments, or refer to the first antenna 226a of the monitoring device 20b.
  • the second antenna may refer to the second antenna 126b of the wireless communication device 10b in the foregoing embodiments, or refer to the second antenna 226b of the monitoring device 20b, which is not limited.
  • S202 Process the signal received by the first antenna to obtain a first signal, and process the signal received by the second antenna to obtain a second signal.
  • the steps of processing the signal may include, but are not limited to, filtering, amplifying, mixing and demodulation, which will not be repeated.
  • S203 Compare the signal strength of the first signal and the second signal to obtain a signal with a higher signal strength in the first signal and the second signal, and transmit and receive the signal through the antenna corresponding to the signal with the higher signal strength.

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Abstract

本申请公开了一种无线通讯设备、监护设备及接收方法。无线通讯设备包括：控制器、第一收发电路和第二收发电路，第一收发电路和第二收发电路分别与控制器连接。第一收发电路和第二收发电路工作在相同频率，并用于分别与外部设备无线通信而同时接收外部设备的信号。第一收发电路用于接收和解调外部设备的信号而生成第一信号，第二收发电路用于接收和解调外部设备的信号而生成第二信号；控制器用于对第一信号和第二信号进行数据校验，以获取第一信号和第二信号中信息正常的信号，并选择该正常的信号作为无线通讯设备从外部设备获取的最终信号。

Description

监护设备、无线通讯设备及接收方法 技术领域
本申请属于医疗器械的技术领域，尤其涉及一种监护设备、无线通讯设备及接收方法。
背景技术
在无线医疗遥测系统中，监护设备和无线通讯设备之间需要进行通信，来传输相关的数据和指令。但是由于多径效应的客观存在，监护设备和无线通讯设备之间在进行数据传输的过程中，无线通讯设备或者监护设备都存在丢包的可能，并影响无线医疗遥测系统的正常运作。
发明内容
本申请要解决的技术问题在于如何降低无线通讯设备和监护设备在无线传输过程中丢包的可能。
本申请为解决其技术问题，提供了一种无线通讯设备，用于无线医疗遥测系统中。所述无线通讯设备包括：控制器、第一收发电路和第二收发电路，所述第一收发电路和所述第二收发电路分别与所述控制器连接。
所述第一收发电路和所述第二收发电路工作在相同频率，并用于分别与外部设备无线通信而同时接收所述外部设备的信号；所述第一收发电路用于接收和解调所述外部设备的信号而生成第一信号，所述第二收发电路用于接收和解调所述外部设备的信号而生成第二信号。
所述控制器用于对第一信号和第二信号进行数据校验，以获取所述第一信号和所述第二信号中信息正常的信号，并选择该正常的信号作为所述无线通讯设备从所述外部设备获取的最终信号。
一实施例中，所述控制器还用于将信息正常的信号发送给远程监控中心设备。
一实施例中，所述控制器还用于在所述第一信号和所述第二信号都为正常的信号时，比较所述第一信号和所述第二信号的信号强度，并将所述第一信号和所述第二信号中信号强度较高的信号作为所述无线通讯设备从所述外部设备获取的最终信号。
一实施例中，所述控制器还用于在所述第一信号和所述第二信号都为不正常的信号时，跳过数据校验的步骤；比较所述第一信号和所述第二信号的信号强度，并将所述第一信号和所述第二信号中信号强度较高的信号作为所述无线通讯设备从所述外部设备获取 的最终信号。
一实施例中，所述第一收发电路包括依次连接的第一调制解调器、第一射频链路和第一天线。所述第一天线用于接收所述外部设备发出的信号；所述第一射频链路至少用于对所述第一天线接收到的信号进行滤波；所述第一调制解调器用于对滤波后的信号进行解调而得到所述第一信号，并将所述第一信号传输至所述控制器。
一实施例中，所述第二收发电路包括依次连接的第二调制解调器、第二射频链路和第二天线。所述第二天线用于接收所述外部设备发出的信号；所述第二射频链路至少用于对所述第二天线接收到的信号进行滤波；所述第二调制解调器用于对滤波后的信号进行解调而得到所述第二信号，并将所述第二信号传输至所述控制器。
一实施例中，所述控制器还用于通过对应所述最终信号的所述第一收发电路或者所述第二收发电路来发送通信信号。
本申请还提供了另一种无线通讯设备，包括：第一天线、第二天线、以及依次连接的控制器、调制解调器、射频链路和开关；其中，所述开关用于选择性地开启所述第一天线或所述第二天线。
所述第一天线和所述第二天线用于在开启时分别获取外部设备的信号。
所述射频链路至少用于对所述第一天线和所述第二天线接收到的信号进行滤波。
所述调制解调器用于对所述第一天线和所述第二天线接收到的信号进行解调以分别生成第一信号和第二信号。
所述控制器用于比较解调后的所述第一信号和所述第二信号，以获取所述第一信号和所述第二信号中信号强度较高的信号，并通过该信号强度较高的信号所对应的天线来收发信号。
一实施例中，所述控制器还用于将接收到的所述第一信号或者所述第二信号发送给远程监控中心设备。
一实施例中，所述控制器还用于发射通信信号，所述调制解调器用于对所述通信信号进行调制，以生成并通过所述信号强度较高的信号所对应的天线来发送所述通信信号。
本申请还提供了一种监护设备，包括：第一天线、第二天线、以及依次连接的控制器、调制解调器、射频链路和开关；其中，所述开关用于选择性地开启所述第一天线或所述第二天线。
所述第一天线和所述第二天线用于在开启时分别获取无线通讯设备的通信信号。
所述射频链路至少用于对所述第一天线和所述第二天线接收到的通信信号进行滤波。
所述调制解调器用于对所述第一天线和所述第二天线接收到的通信信号进行解调以分别生成第一通信信号和第二通信信号。
所述控制器用于比较解调后的所述第一通信信号和所述第二通信信号，以获取所述第一通信信号和所述第二通信信号中信号强度较高的信号，并通过该信号强度较高的信号所对应的天线来收发信号。
一实施例中，所述监护设备还包括参数获取组件，用于采集目标对象的参数信息，所述控制器还用于将目标对象的参数信息和/或报警信息作为信号内容，并通过所述调制解调器生成参数信号；所述参数信号依次通过所述射频链路、所述开关以及所述第一天线或所述第二天线实现发送。
一实施例中，所述第一天线和所述第二天线之间的距离为四分之一波长或者二分之一波长。
本申请还提供了另一种监护设备，包括：控制器、第一收发电路和第二收发电路，所述第一收发电路和所述第二收发电路分别与所述控制器连接。
所述第一收发电路和所述第二收发电路工作在相同频率，并用于分别与无线通讯设备无线通信而同时接收所述无线通讯设备的信号；所述第一收发电路用于接收和解调所述无线通讯设备的信号而生成第一通信信号，所述第二收发电路用于接收和解调所述无线通讯设备的信号而生成第二通信信号。
所述控制器用于对第一通信信号和第二通信信号进行数据校验，以获取所述第一通信信号和所述第二通信信号中信息正常的信号作为所述监护设备从所述无线通讯设备获取的最终信号。
一实施例中，所述控制器还用于在所述第一通信信号和所述第二通信信号都为正常的信号时，比较所述第一通信信号和所述第二通信信号的信号强度，并将所述第一通信信号和所述第二通信信号中信号强度较高的信号作为所述监护设备从所述无线通讯设备获取的最终信号。
一实施例中，所述控制器还用于在所述第一通信信号和所述第二通信信号都为不正常的信号时，跳过数据校验的步骤；比较所述第一通信信号和所述第二通信信号的信号强度，并将所述第一通信信号和所述第二通信信号中信号强度较高的信号作为所述监护设备从所述无线通讯设备获取的最终信号。
一实施例中，所述第一收发电路包括依次连接的第一调制解调器、第一射频链路和第一天线。
所述第一天线用于接收外部设备发出的信号；所述第一射频链路至少用于对所述第一天线接收到的信号进行滤波；所述第一调制解调器用于对滤波后的信号进行解调而得到所述第一通信信号，并将解调后的所述第一通信信号传输至所述控制器。
一实施例中，所述第二收发电路包括依次连接的第二调制解调器、第二射频链路和第二天线。
所述第二天线用于接收外部设备发出的信号；所述第二射频链路至少用于对所述第二天线接收到的信号进行滤波；所述第二调制解调器用于对滤波后的信号进行解调而得到所述第二通信信号，并将解调后的所述第二通信信号传输至所述控制器。
一实施例中，所述控制器还用于通过对应所述最终信号的所述第一收发电路或者所述第二收发电路来发送信号。
本申请还提供一种接收方法，用于无线医疗遥感系统中。所述接收方法包括：
通过工作在同一频率的第一收发电路和第二收发电路分别同时接收外部设备的信号。
通过所述第一收发电路解调接收到的信号而获取第一信号，通过所述第二收发电路解调接收到的信号而获取第二信号。
对所述第一信号和所述第二信号进行数据校验，以获取所述第一信号和所述第二信号中信息正常的信号，并选择该正常的信号作为从所述外部设备获取的最终信号。
一实施例中，在所述第一信号和所述第二信号都为正常的信号时，比较所述第一信号和所述第二信号的信号强度。
将所述第一信号和所述第二信号中信号强度较高的信号作为从所述外部设备获取的最终信号。
一实施例中，在所述第一信号和所述第二信号都为不正常的信号时，跳过数据校验的步骤；
比较所述第一信号和所述第二信号的信号强度，并将所述第一信号和所述第二信号中信号强度较高的信号作为所述无线通讯设备从所述外部设备获取的最终信号。
本申请还提供另一种接收方法，包括：
通过第一天线和第二天线分别接收外部设备的信号。
处理所述第一天线接收的信号而获取第一信号，处理所述第二天线接收的信号而获取第二信号。
比较所述第一信号和所述第二信号的信号强度，以获取所述第一信号和所述第二信号中信号强度较高的信号，并通过该信号强度较高的信号所对应的天线来收发信号。
一实施例中，所述外部设备来自无线通讯设备或者监护设备。
本申请通过设置两路分别接收信号的收发电路，在该两路的收发电路应用到无线通讯设备中时，确保无线通讯设备可以及时且准确地接收外部设备发送的信号；在该两路的收发电路应用到监护设备中时，确保监护设备可以保持与无线通讯设备的通信连接，以接收通信信号。
本申请还通过设置可以切换的双天线结构，在该双天线结构应用到无线通讯设备中时，无线通讯设备可以切换接收信号的天线而及时且准确地接收外部设备发送的信号；在该双天线结构应用到监护设备中时，监护设备可以切换接收信号的天线而保持与无线通讯设备的通信连接，以接收通信信号。
本申请还通过用于无线医疗遥感系统的接收方法，以使无线通讯设备和监护设备在进行无线通信的过程中，信号能够及时且准确地被接收，以确保无线通讯设备和监护设备获取信号中的信号内容。
附图说明
图1是本申请实施例提供的一种无线通讯设备的框架图。
图2是本申请实施例提供的另一种无线通讯设备的示意图。
图3是本申请实施例提供的一种监护设备的框架图。
图4是本申请实施例提供的另一种监护设备的示意图。
图5是本申请实施例提供的一种接收方法的流程图。
图6是本申请实施例提供的另一种接收方法的流程图。
具体实施方式
为了对本申请的技术特征、目的和效果有更加清楚的理解，现对照附图详细说明本申请的具体实施方式。
常态的无线医疗遥测系统中，其无线通讯设备是通过某一固定的频段来进行信号的传输，比如将从目标对象上获取的心电参数(ECG)、血氧饱和度参数(SpO2)、无创血压参数(NIBP)等参数以及针对各个参数的报警信息发送给无线通讯设备，无线通讯设备再将这些数据发送到远程监控中心设备。医护人员根据该些参数和报警信息来分析目标对象的身体状态，以确定后续所需要进行的操作。而在医院等场所中，由于目标对象的数量较多且分布的密度较大，部分目标对象需要重点注意的参数类型可能就包括心电参数，另一部分目标对象需要重点注意的参数类型可能就包括了血氧饱和度参数和血压参数。相应 的，不同的目标对象可能会搭配不同类型或者不同产商生产的监护设备。
在日常对目标对象进行远程医疗监护的过程中，由于医院各楼层的房间分布的复杂程度较高、目标对象的密度较大、以及针对不同目标对象的监护设备和急救设备较多，信号在传输过程中的多径效应也较为严重。基于此，无线传输的信号存在迅速衰减的可能，进而导致常态的无线通讯设备接收监护设备的信号出现丢包、失真或者无法接收的现象较为频繁。在一些情况下，容易出现目标对象的突发状况无法被医护人员获知，甚至会耽误医护人员对目标对象进行抢救的时机。
基于以上的问题，本申请各实施例提供了无线通讯设备(10a，10b)、监护设备(20a，20b)以及接收方法。一些实施例中的无线通讯设备10a和监护设备20a均可以通过两个收发电路来分别接收信号，以筛选出接收到的两个信号中强度较高的信号。另一些实施例中的无线通讯设备10b和监护设备20b均配置了可以切换的两根天线，两根天线之间比如可以距离四分之一波长或者二分之一波长等的距离。在一天线存在接收效果不佳的情况下，可以切换到另一天线进行接收。由于两根天线之间存在四分之一或者二分之一周期等的相位差，在通过另一根天线接收信号时，可以提高该天线接收信号的可能，降低多径效应对信号传输的影响。
由此，可以确保监护设备从目标对象上获取的参数信息和报警信息能够及时且准确地传输到无线通讯设备(10a，10b)，以待医护人员进行调用、查看、分析或者进行其他操作；监护设备(20a，20b)可以及时且准确地接收到无线通讯设备发送的通信信号。
以高血压的目标对象来补充说明，高血压的目标对象通过监护设备来监测血压参数的变化时，由于高血压的目标对象自身的身体状态，血压值偏高并且容易触发监护设备报警，每次报警就会产生报警信息。目标对象的血压参数和报警信息需要及时地发送到无线通讯设备中，以供无线通讯设备进行转发，比如转发到远程监控中心设备。相应的，远程监控中心设备的医护人员就可以查看这个目标对象的参数信息和报警信息，以实时获取目标对象的血压变化。
但是，在监护设备到无线通讯设备的过程中，正如上面所分析的，目标对象多、监护设备多、各房间的布置相对复杂，由于多径效应的影响，有些监护设备的信号可能无法及时地传输到无线通讯设备中，这就容易造成事故的发生。而本申请各实施例中的无线通讯设备(10a，10b)、监护设备(20a，20b)以及接收方法也正是针对这种信号传输不稳定的问题，以下将对本申请的无线通讯设备(10a，10b)和监护设备(20a，20b)做详细的 介绍。
请参考图1，本申请实施例提供的一种无线通讯设备10a，包括：控制器100、第一收发电路110a和第二收发电路110b。
第一收发电路110a和第二收发电路110b分别与控制器100连接，以将分别接收到的信号传输给控制器100，由此可以实现与包括监护设备在内的外部设备的无线通信。
为了使无线通讯设备10a接收到同一设备发送的载有同一内容的信号，各实施例中一般是将无线通讯设备10a的第一收发电路110a和第二收发电路110b设置成工作在同一频率，以同时接收外部设备发送的信号。针对该设备发出的同一信号，第一收发电路110a感应而生成第一信号，第二收发电路110b感应而生成第二信号，该第一信号和该第二信号被传输到无线通讯设备10a的控制器100中。控制器100可以通过数据校验算法来对第一信号和第二信号进行校验，以确定第一信号和第二信号中哪个信号是属于信息正常的信号，之后控制器100将该信息正常的信号作为从外部设备获取的最终信号。后续无线通讯设备10a可以再发送该信息正常的信号至其他设备。应当理解，控制器100可以通过交换机等设备来传输该最终信号；或者，控制器100可以通过对应最终信号的第一收发电路110a或第二收发电路110b传输该信息正常的信号。
相对于常态的无线通讯设备，本实施例提供的无线通讯设备10a可以根据两个相对独立工作的收发电路(110a，110b)来进行信号传输。由此可以提高无线通讯设备10a对信号的接收能力，以降低信号丢包、失真或者中断的可能。由此，医护人员可以及时且准确地接收到当前目标对象的参数信息和报警信息。在一些情况下，根据及时获取的该些信号，医护人员可以在最短的时间内对突发情况下的目标对象进行抢救，而不会耽误抢救的时机。
一些实施例中，在第一信号和第二信号都被确定为正常的信号时，控制器100还用于比较第一信号和第二信号的信号强度，比如分析第一信号和第二信号的信噪比。由此，无线通讯设备10a可以获取信号强度较高的信号，并将该信号强度较高的信号作为无线通讯设备10a从外部设备获取的最终信号；后续无线通讯设备10a可以发送该强度较高的信号。
一些实施例中，在第一信号和第二信号都被确定为不正常的信号时，控制器100可以确定数据校验的步骤可能不合理。由此，控制器100跳过数据校验的步骤，并比较第一信号和第二信号的信号强度，以此来获取第一信号和第二信号中信号强度较高的信号，并将该信号强度较高的信号作为无线通讯设备10a从外部设备获取的最终信号；后续无线通讯设备10a可以发送该强度较高的信号。当医护人员在远程监控中心查看对应信号的参数信 息时，若是参数信息正常显示，则可以确定数据校验不合理，需要进行调整；若是参数信息不正常显示，则可以确定无线通讯设备10a存在故障，并通知技术人员来进行维护。
为了简化分析以便于理解本申请的技术方案，以第一信号为信息正常且信号强度较高的信号来举例说明。
监护设备通过参数获取组件将目标对象的参数信息转换成电信息，比如该些电信息为血压参数。监护设备将血压参数的电信息通过调制、混频、放大和滤波等步骤处理后，再通过天线以电磁波信号的方式发送至外界空间。
无线通讯设备10a的第一收发电路110a和第二收发电路110b分别对该电磁波信号进行接收，并通过滤波、放大、混频和解调等步骤处理后，相应得到第一信号和第二信号。第一信号和第二信号可以通过数据总线传输给控制器100，控制器100再对第一信号和第二信号进行数据校验，以确定第一信号和第二信号中的信号内容是否包括了目标对象的血压参数。
一种可能的实施方式中，第二信号进行数据校验后得到的校验值与预定校验值不同，确定通过第二收发电路110b接收到的第二信号丢包；即，第二信号实际并没有包括目标对象完整的血压参数。由此，控制器100选择第一信号作为最终信号来进行发送操作。
一种可能的实施方式中，第二信号进行数据校验后得到的校验值与预定校验值相同。控制器100再比较第一信号和第二信号的信号强度，并确定第一信号的信号强度比第二信号的信号强度高。由此，控制器100选择第一信号作为最终信号来进行发送操作。
在其他的一些实施例中，也可以将第二信号作为信息正常且信号强度较高的信号，对此不加赘述。
请参考图1，一些实施例中，第一收发电路110a可以包括依次连接的第一调制解调器112a、第一射频链路114a和第一天线116a。第一天线116a可以接收外部设备发出的信号，第一射频链路114a可以对接收到的信号进行滤波、放大和混频等处理，以降低接收到的信号的噪声。第一调制解调器112a可以对处理后的信号进行解调，以获取信号中的信号内容并生成第一信号。
类似于第一收发电路110a的结构，第二收发电路110b可以包括依次连接的第二调制解调器112b、第二射频链路114b和第二天线116b。第二天线116b可以接收外部设备发出的信号，第二射频链路114b可以对接收到的信号进行滤波、放大和混频等处理，以降低接收到的信号的噪声。第二调制解调器112b可以对处理后的信号进行解调，以获取信号中的信号内容并生成第二信号。
一些实施例中，应当理解，除了接收信号，无线通讯设备10a也可以通过对应最终信号的第一收发电路110a或者第二收发电路110b来发送通信信号。比如：该最终信号为第一收发电路110a接收到的第一信号，则无线通讯设备10a通过第一收发电路110a来发射通信信号。以此类推，若是该最终信号为第二收发电路110b接收到的第二信号，则无线通讯设备10a通过第二收发电路110b来发射通信信号。
请参考图2，本申请的实施例还提供了另一种无线通讯设备10b，类似上述各实施例中的无线通讯设备10a，该无线通讯设备10b通过设置可以切换的第一天线126a和第二天线126b来接收外部设备发送的信号。为了简化分析，各实施例中无线通讯设备10b以接收监护设备发送的信号为例来进行说明。
请参考图2，一些实施例中，无线通讯设备10b至少包括：控制器100、调制解调器122、射频链路124、开关K1、第一天线126a和第二天线126b。
控制器100、调制解调器122、射频链路124和开关K1依次连接，开关K1则用于选择性地开启第一天线126a或第二天线126b。相应的，该开关K1为单刀双掷开关，开关K1的固定端与射频链路124连接，活动端可选择性的连接第一天线126a或第二天线126b，从而开启第一天线126a或第二天线126b。
例如，开关K1的活动端可以选择第一天线126a和第二天线126b中一个与射频链路124连接。
其中，第一天线126a和/或第二天线126b通过开关K1与射频链路124连接时，可以进行相关信号的收发，而处于开启状态。由此，第一天线126a和第二天线126b可以在开启时分别接收外部设备发出的信号。
当开关K1切换到与第一天线126a连接时，第一天线126a接收监护设备发出的信号，第一天线126a接收到的信号依次通过射频链路124和调制解调器122进行滤波、放大、混频和解调等处理后而生成第一信号，而后传输到控制器100中。当开关K1切换到与第二天线126b连接时，第二天线126b接收外部设备发出的信号。第二天线126b接收到的信号依次通过共用的射频链路124和调制解调器122来进行滤波、放大、混频和解调等处理后而生成第二信号，而后也传输到控制器100中。
其中，如前所述，开关K1可选择第一天线126a和第二天线126b中的一个与射频链路连接，从而第一天线126a和第二天线126b为先后接收信号并通过射频链路124和调制解调器122先后生成所述第一信号和第二信号。
无线通讯设备10b的控制器100比较该第一信号和该第二信号的信号强度，以确定第 一天线126a和第二天线126b中哪一根天线接收到的信号较好，再控制开关K1与该天线连接以接收信号和发送相关信号。
以第一信号的强度较高来举例说明，一些实施例中，无线通讯设备10b在刚开始进行接收的时候，就先比较第一信号和第二信号的信号强度。控制器100确定通过第一天线126a接收到的第一信号的信号强度较高，控制开关K1切换到与第一天线126a连接，并通过第一天线126a来接收信号和发送相关信号。
一些实施例中，无线通讯设备10b能够确保获取到的信号为正常的信号，信号内含有目标对象的参数信息和报警信息等内容。后续，无线通讯设备10b可以将接受到的信号发送给远程监控中心设备30，以供医护人员查阅。
请参考图3，本申请实施例提供的一种监护设备20a，类似上述部分实施例中的无线通讯设备10a的结构，该监护设备20a通过控制器200、以及分别连接控制器200的第一收发电路210a和第二收发电路210b来实现对各类型的无线通讯设备的信号的接收。
一些实施例中，监护设备20a的第一收发电路210a和第二收发电路210b设置成工作在同一频率，以分别同时对无线通讯设备发送的相同信号进行接收。第一收发电路210a感应而生成第一通信信号，第二收发电路210b感应而生成第二通信信号，该第一通信信号和该第二通信信号被传输到监护设备20a的控制器200中。控制器200可以通过数据校验算法来对第一通信信号和第二通信信号进行校验，以确定第一通信信号和第二通信信号中哪个信号是属于信息正常的信号；控制器200将该信息正常的信号作为从无线通讯设备获取的最终信号。
相对于常态的监护设备，本实施例提供的监护设备20a可以根据两个相对独立工作的收发电路(210a，210b)来进行信号传输。由此可以提高监护设备20a对信号的接收能力，以降低信号丢包、失真或者中断的可能。
一些实施例中，在第一通信信号和第二通信信号都被确定为正常的信号时，控制器200还用于比较第一通信信号和第二通信信号的信号强度，比如分析第一通信信号和第二通信信号的信噪比。由此，监护设备20a可以获取信号强度较高的信号，并将该信号强度较高的信号作为监护设备20a从无线通讯设备获取的最终信号。
一些实施例中，在第一通信信号和第二通信信号都被确定为不正常的信号时，控制器200可以确定数据校验的步骤可能不合理。由此，控制器200跳过数据校验的步骤，并比较第一通信信号和第二通信信号的信号强度，以此来获取第一通信信号和第二通信信号中信号强度较高的信号，并将该信号强度较高的信号作为监护设备20a从无线通讯设备获取 的最终信号。当监护设备20a响应通信信号而进行相关操作时，则可以确定数据校验不合理，需要进行调整；若是监护设备20a没有响应通信信号而进行相关操作，则可以确定监护设备20a存在故障，并通知技术人员来进行维护。
为了简化分析以便于理解本申请的技术方案，同样是以第一通信信号为信息正常且信号强度较高的信号来举例说明。
无线通讯设备将通信指令转换成电信息，并通过调制、混频、放大和滤波等步骤处理后，再利用天线以电磁波信号的方式发送至外界空间。
监护设备20a的第一收发电路210a和第二收发电路210b分别对该电磁波信号进行接收，并通过滤波、放大、混频和解调等步骤处理后，相应得到第一通信信号和第二通信信号。第一通信信号和第二通信信号可以通过数据总线传输给控制器200，控制器200再对第一通信信号和第二通信信号进行数据校验，以确定第一通信信号和第二通信信号中的信号内容是否包括了目标对象的血压参数。
一种可能的实施方式中，第二通信信号进行数据校验后得到的校验值与预定校验值不同，确定通过第二收发电路210b接收到的第二通信信号丢包；即，第二通信信号实际并没有包括无线通讯设备的通信指令。由此，控制器200获取第一通信信号的信号内容，以进行相关操作。
一种可能的实施方式中，第二通信信号进行数据校验后得到的校验值与预定校验值相同。控制器200再比较第一通信信号和第二通信信号的信号强度，并确定第一通信信号的信号强度比第二通信信号的信号强度高。由此，控制器200获取第一通信信号的信号内容，以进行相关操作。
在其他的一些实施例中，也可以将第二通信信号作为信息正常且信号强度较高的信号，对此不加赘述。
请参考图3，一些实施例中，第一收发电路210a可以包括依次连接的第一调制解调器212a、第一射频链路214a和第一天线216a。第一天线216a可以接收无线通讯设备发出的信号，第一射频链路214a可以对接收到的通信信号进行滤波、放大和混频等处理，以降低接收到的通信信号的噪声。第一调制解调器212a可以对处理后的通信信号进行解调，以获取信号中的信号内容并生成第一通信信号。
类似于第一收发电路210a的结构，第二收发电路210b可以包括依次连接的第二调制解调器212b、第二射频链路214b和第二天线216b。第二天线216b可以接收无线通讯设备发出的信号，第二射频链路214b可以对接收到的通信信号进行滤波、放大和混频等处 理，以降低接收到的通信信号的噪声。第二调制解调器212b可以对处理后的通信信号进行解调，以获取信号中的信号内容并生成第二通信信号。
一些实施例中，该监护设备20a除了接收信号，也可以通过第一收发电路210a或者第二收发电路210b来发送信号。比如：该最终信号为第一收发电路210a接收到的第一信号，则监护设备20a通过第一收发电路210a来发射信号。以此类推，若是该最终信号为第二收发电路210b接收到的第二信号，则监护设备20a通过第二收发电路110b来发射信号。
请参考图4，本申请的实施例还提供另一种监护设备20b，该监护设备20b可以接收无线通讯设备发送的通信信号、通过参数获取组件40获取目标对象的参数信息以及发送加载有目标对象的参数信息和/或报警信息的参数信号给无线通讯设备。为了提高与无线通讯设备无线通信的稳定性，本申请各实施例中的监护设备20b是通过设置可以切换的第一天线226a和第二天线226b来接收无线通讯设备发出的通信信号以及发送相关信号。
请参考图4，一些实施例中，监护设备20b至少包括：控制器200、调制解调器222、射频链路224、开关K2、第一天线226a和第二天线226b。
控制器200、调制解调器222、射频链路224和开关K2依次连接，开关K2则用于选择性地开启第一天线226a或第二天线226b。相应的，该开关K2为单刀双掷开关K2。由此，第一天线226a和第二天线226b可以在开启时分别接收外界空间的信号。
为了简化考虑，各实施例中以监护设备20b接收无线通讯设备发送的通信信号来举例说明。但是也应该理解，各实施例中监护设备20b也可以实现多个监护设备之间的数据互传或者数据汇总等。当开关K2切换到与第一天线226a连接时，第一天线226a接收通信信号，第一天线226a接收到的通信信号依次通过射频链路224和调制解调器222进行滤波、放大、混频和解调等处理后而生成第一通信信号，而后传输到控制器200中。当开关K2切换到与第二天线226b连接时，第二天线226b接收通信信号。第二天线226b接收到的通信信号依次通过射频链路224和调制解调器222进行滤波、放大、混频和解调而生成第二通信信号，而后传输到控制器200中。
监护设备20b的控制器200比较该第一通信信号和该第二通信信号的信号强度，以确定第一天线226a和第二天线226b中哪一根天线接收到的信号较好，再控制开关K2与该天线连接以接收通信信号和发送相关信号。
以第一通信信号的强度较高来举例说明，一些实施例中，监护设备20b在刚开始接收通信信号的时候，就先比较第一通信信号和第二通信信号的信号强度。控制器200确定通过第一天线226a接收到的第一通信信号的信号强度较高，控制开关K2切换到与第一天线 226a连接，并通过第一天线226a来接收通信信号以及发送相关信号。
一些实施例中，监护设备20b能够及时地接收到无线通讯设备的通信信号，并根据通信信号中包含的信号内容进行相关的操作。
请参考图5和图6，本申请的实施例还提供了对应以上的无线通讯设备(10a，10b)或者监护设备(20a，20b)的接收方法，该些接收方法应用在无线医疗遥测系统中，并用于实现对无线通讯设备或者监护设备发送的信号的接收。
请参考图5，一些实施例中，本申请实施例提供的一种接收方法，包括但不限于以下步骤：
S101：通过工作在同一频率的第一收发电路和第二收发电路分别同时接收外部设备的信号。
其中，该第一收发电路可以指代上述实施例中无线通讯设备10a的第一收发电路110a，或者，指代监护设备20a的第一收发电路210a。对应的，该第二收发电路可以指代上述实施例中无线通讯设备10a的第二收发电路110b，或者，指代监护设备20a的第二收发电路210b，对此不做限制。
S102：通过第一收发电路解调接收到的信号而获取第一信号，通过第二收发电路解调接收到的信号而获取第二信号。
其中，该第一收发电路可以分别对接收到的信号进行滤波、放大、混频和解调等处理，而获取第一信号。该第二收发电路可以分别对接收到的信号进行滤波、放大、混频和解调等处理，而获取第二信号。
由于不确定得到的第一信号和第二信号中哪个信号是属于信息正常的信号，所以还需要对第一信号和第二信号进行校验或者比较。基于此，该接收方法还包括：
S103：对第一信号和第二信号进行数据校验，以获取第一信号和第二信号中信息正常的信号，并选择该正常的信号作为从外部设备获取的最终信号。
应当理解，本申请实施例提供的接收方法通过将第一收发电路和第二收发电路设置成工作在同一频率，以同时对外部设备发出的同一信号进行接收和处理，由此以降低信号丢包、失真或者中断的可能。
本申请实施例提供的接收方法还包括：在第一信号和第二信号都被确定为正常的信号时，比较第一信号和第二信号的信号强度，比如分析第一信号和第二信号的信噪比。由此，可以获取信号强度较高的信号，并将该信号强度较高的信号作为从外部设备获取的最终信号。
应当理解，由于该最终信号是第一信号和第二信号中信号强度较高的信号，可以便于后续在对该最终信号进行相关处理；比如：发送该最终信号，或者，根据最终信号的信号内容执行相关操作。
本申请实施例提供的接收方法还包括：在第一信号和第二信号都被确定为不正常的信号时，初步确定数据校验的步骤不合理。由此，跳过数据校验的步骤，并比较第一信号和第二信号的信号强度，以此来获取第一信号和第二信号中信号强度较高的信号，并将该信号强度较高的信号作为从外部设备获取的最终信号。
为了简化分析以便于理解本申请的技术方案，以第一信号为信息正常且信号强度较高的信号来举例说明。
通过第一收发电路和第二收发电路分别对外部设备发出的电磁波信号进行接收，并通过滤波、放大、混频和解调等步骤处理后，相应得到第一信号和第二信号，并通过数据校验算法来对第一信号和第二信号进行数据校验。
一种可能的实施方式中，第二信号进行数据校验后得到的校验值与预定校验值不同，确定通过第二收发电路接收到的第二信号丢包；即，第二信号实际并没有包括完整的信号内容。由此，选择第一信号作为最终信号。
一种可能的实施方式中，第二信号进行数据校验后得到的校验值与预定校验值相同。再比较第一信号和第二信号的信号强度，并确定第一信号的信号强度比第二信号的信号强度高。由此，选择第一信号作为最终信号。
请参考图6，本申请实施例还提供了另一种接收方法，该接收方法与上述各实施例中的无线通讯设备10b或监护设备20b相对应。本申请实施例提供的另一种接收方法包括但不限于以下步骤：
S201：通过第一天线和第二天线分别接收外部设备的信号。
其中，该第一天线可以指代上述各实施例中无线通讯设备10b的第一天线126a，或者，指代监护设备20b的第一天线226a。该第二天线可以指代上述各实施例中无线通讯设备10b的第二天线126b，或者，指代监护设备20b的第二天线226b，对此不做限制。
S202：处理第一天线接收的信号而获取第一信号，处理第二天线接收的信号而获取第二信号。
其中，处理信号的步骤可以包括但不限于是滤波、放大、混频和解调，对此不加赘述。
S203：比较第一信号和第二信号的信号强度，以获取第一信号和第二信号中信号强度较高的信号，并通过该信号强度较高的信号所对应的天线来收发信号。
应当理解，通过该接收方法，同样可以降低信号丢包的可能，以确保接收到的信号为正常的信号。
以上公开的仅为本申请具体的实施例，但是本申请并非局限于此，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。显然这些改动和变型均应属于本申请要求的保护范围保护内。此外，尽管本说明书中使用了一些特定的术语，但这些术语只是为了方便说明，并不对本申请构成任何特殊限制。

Claims (24)

  1. 一种无线通讯设备，用于无线医疗遥测系统中，其特征在于，所述无线通讯设备包括：控制器、第一收发电路和第二收发电路，所述第一收发电路和所述第二收发电路分别与所述控制器连接；
    所述第一收发电路和所述第二收发电路工作在相同频率，并用于分别与外部设备无线通信而同时接收所述外部设备的信号；所述第一收发电路用于接收和解调所述外部设备的信号而生成第一信号，所述第二收发电路用于接收和解调所述外部设备的信号而生成第二信号；
    所述控制器用于对第一信号和第二信号进行数据校验，以获取所述第一信号和所述第二信号中信息正常的信号，并选择该正常的信号作为所述无线通讯设备从所述外部设备获取的最终信号。
  2. 如权利要求1所述的无线通讯设备，其特征在于，所述控制器还用于将信息正常的信号发送给远程监控中心设备。
  3. 如权利要求1所述的无线通讯设备，其特征在于，所述控制器还用于在所述第一信号和所述第二信号都为正常的信号时，比较所述第一信号和所述第二信号的信号强度，并将所述第一信号和所述第二信号中信号强度较高的信号作为所述无线通讯设备从所述外部设备获取的最终信号。
  4. 如权利要求1所述的无线通讯设备，其特征在于，所述控制器还用于在所述第一信号和所述第二信号都为不正常的信号时，跳过数据校验的步骤；比较所述第一信号和所述第二信号的信号强度，并将所述第一信号和所述第二信号中信号强度较高的信号作为所述无线通讯设备从所述外部设备获取的最终信号。
  5. 如权利要求1所述的无线通讯设备，其特征在于，所述第一收发电路包括依次连接的第一调制解调器、第一射频链路和第一天线；
    所述第一天线用于接收所述外部设备发出的信号；所述第一射频链路至少用于对所述第一天线接收到的信号进行滤波；所述第一调制解调器用于对滤波后的信号进行解调而得到所述第一信号，并将所述第一信号传输至所述控制器。
  6. 如权利要求1所述的无线通讯设备，其特征在于，所述第二收发电路包括依次连接的第二调制解调器、第二射频链路和第二天线；
    所述第二天线用于接收所述外部设备发出的信号；所述第二射频链路至少用于对所述第二天线接收到的信号进行滤波；所述第二调制解调器用于对滤波后的信号进行解调而得 到所述第二信号，并将所述第二信号传输至所述控制器。
  7. 如权利要求1所述的无线通讯设备，其特征在于，所述控制器还用于通过对应所述最终信号的所述第一收发电路或者所述第二收发电路来发送通信信号。
  8. 一种监护设备，其特征在于，包括：第一天线、第二天线、以及依次连接的控制器、调制解调器、射频链路和开关；其中，所述开关用于选择性地开启所述第一天线或所述第二天线；
    所述第一天线和所述第二天线用于在开启时分别获取无线通讯设备的通信信号；
    所述射频链路至少用于对所述第一天线和所述第二天线接收到的通信信号进行滤波；
    所述调制解调器用于对所述第一天线和所述第二天线接收到的通信信号进行解调以分别生成第一通信信号和第二通信信号；
    所述控制器用于比较解调后的所述第一通信信号和所述第二通信信号，以获取所述第一通信信号和所述第二通信信号中信号强度较高的信号，并通过该信号强度较高的信号所对应的天线来收发信号。
  9. 如权利要求8所述的监护设备，其特征在于，所述监护设备还包括参数获取组件，用于采集目标对象的参数信息，所述控制器还用于将目标对象的参数信息和/或报警信息作为信号内容，并通过所述调制解调器生成参数信号；所述参数信号依次通过所述射频链路、所述开关以及所述第一天线或所述第二天线实现发送。
  10. 如权利要求8所述的监护设备，其特征在于，所述第一天线和所述第二天线之间的距离为四分之一波长或者二分之一波长。
  11. 一种无线通讯设备，用于无线医疗遥测系统中，其特征在于，所述无线通讯设备包括：第一天线、第二天线、以及依次连接的控制器、调制解调器、射频链路和开关；其中，所述开关用于选择性地开启所述第一天线或所述第二天线；
    所述第一天线和所述第二天线用于在开启时分别获取外部设备的信号；
    所述射频链路至少用于对所述第一天线和所述第二天线接收到的信号进行滤波；
    所述调制解调器用于对所述第一天线和所述第二天线接收到的信号进行解调以分别生成第一信号和第二信号；
    所述控制器用于比较解调后的所述第一信号和所述第二信号，以获取所述第一信号和所述第二信号中信号强度较高的信号，并通过该信号强度较高的信号所对应的天线来收发信号。
  12. 如权利要求11所述的无线通讯设备，其特征在于，所述控制器还用于将接收到的所述第一信号或者所述第二信号发送给远程监控中心设备。
  13. 如权利要求11所述的无线通讯设备，其特征在于，所述控制器还用于发射通信信号，所述调制解调器用于对所述通信信号进行调制，以生成并通过所述信号强度较高的信号所对应的天线来发送所述通信信号。
  14. 一种监护设备，其特征在于，包括：控制器、第一收发电路和第二收发电路，所述第一收发电路和所述第二收发电路分别与所述控制器连接；
    所述第一收发电路和所述第二收发电路工作在相同频率，并用于分别与无线通讯设备无线通信而同时接收所述无线通讯设备的信号；所述第一收发电路用于接收和解调所述无线通讯设备的信号而生成第一通信信号，所述第二收发电路用于接收和解调所述无线通讯设备的信号而生成第二通信信号；
    所述控制器用于对第一通信信号和第二通信信号进行数据校验，以获取所述第一通信信号和所述第二通信信号中信息正常的信号作为所述监护设备从所述无线通讯设备获取的最终信号。
  15. 如权利要求14所述的监护设备，其特征在于，所述控制器还用于在所述第一通信信号和所述第二通信信号都为正常的信号时，比较所述第一通信信号和所述第二通信信号的信号强度，并将所述第一通信信号和所述第二通信信号中信号强度较高的信号作为所述监护设备从所述无线通讯设备获取的最终信号。
  16. 如权利要求14所述的监护设备，其特征在于，所述控制器还用于在所述第一通信信号和所述第二通信信号都为不正常的信号时，跳过数据校验的步骤；比较所述第一通信信号和所述第二通信信号的信号强度，并将所述第一通信信号和所述第二通信信号中信号强度较高的信号作为所述监护设备从所述无线通讯设备获取的最终信号。
  17. 如权利要求14所述的监护设备，其特征在于，所述第一收发电路包括依次连接的第一调制解调器、第一射频链路和第一天线；
    所述第一天线用于接收外部设备发出的信号；所述第一射频链路至少用于对所述第一天线接收到的信号进行滤波；所述第一调制解调器用于对滤波后的信号进行解调而得到所述第一通信信号，并将解调后的所述第一通信信号传输至所述控制器。
  18. 如权利要求14所述的监护设备，其特征在于，所述第二收发电路包括依次连接的第二调制解调器、第二射频链路和第二天线；
    所述第二天线用于接收外部设备发出的信号；所述第二射频链路至少用于对所述第二 天线接收到的信号进行滤波；所述第二调制解调器用于对滤波后的信号进行解调而得到所述第二通信信号，并将解调后的所述第二通信信号传输至所述控制器。
  19. 如权利要求14所述的监护设备，其特征在于，所述控制器还用于通过对应所述最终信号的所述第一收发电路或者所述第二收发电路来发送信号。
  20. 一种接收方法，用于无线医疗遥感系统中，其特征在于，所述接收方法包括：
    通过工作在同一频率的第一收发电路和第二收发电路分别同时接收外部设备的信号；
    通过所述第一收发电路解调接收到的信号而获取第一信号，通过所述第二收发电路解调接收到的信号而获取第二信号；
    对所述第一信号和所述第二信号进行数据校验，以获取所述第一信号和所述第二信号中信息正常的信号，并选择该正常的信号作为从所述外部设备获取的最终信号。
  21. 如权利要求20所述的接收方法，其特征在于，所述接收方法还包括：
    在所述第一信号和所述第二信号都为正常的信号时，比较所述第一信号和所述第二信号的信号强度；
    将所述第一信号和所述第二信号中信号强度较高的信号作为从所述外部设备获取的最终信号。
  22. 如权利要求20所述的接收方法，其特征在于，所述接收方法还包括：
    在所述第一信号和所述第二信号都为不正常的信号时，跳过数据校验的步骤；
    比较所述第一信号和所述第二信号的信号强度，并将所述第一信号和所述第二信号中信号强度较高的信号作为所述无线通讯设备从所述外部设备获取的最终信号。
  23. 一种接收方法，用于无线医疗遥感系统中，其特征在于，所述接收方法包括：
    通过第一天线和第二天线分别接收外部设备的信号；
    处理所述第一天线接收的信号而获取第一信号，处理所述第二天线接收的信号而获取第二信号；
    比较所述第一信号和所述第二信号的信号强度，以获取所述第一信号和所述第二信号中信号强度较高的信号，并通过该信号强度较高的信号所对应的天线来收发信号。
  24. 如权利要求20至23任一项所述的接收方法，其特征在于，所述外部设备来自无线通讯设备或者监护设备。
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