CN111770566B - Wireless medical equipment interference suppression system based on synchronous state monitoring - Google Patents
Wireless medical equipment interference suppression system based on synchronous state monitoring Download PDFInfo
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- CN111770566B CN111770566B CN202010658064.6A CN202010658064A CN111770566B CN 111770566 B CN111770566 B CN 111770566B CN 202010658064 A CN202010658064 A CN 202010658064A CN 111770566 B CN111770566 B CN 111770566B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/004—Synchronisation arrangements compensating for timing error of reception due to propagation delay
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B15/00—Suppression or limitation of noise or interference
- H04B15/02—Reducing interference from electric apparatus by means located at or near the interfering apparatus
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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Abstract
The invention discloses a wireless medical equipment interference suppression system based on synchronous state monitoring, and particularly relates to the technical field of wireless communication. According to the invention, the central processing unit acquires accurate signal delay data by comparing the master timer with the slave timer, the suppression of signal interference is improved based on the synchronous state monitoring of the master timer and the slave timer, the interference suppression can be improved by repeating signal broadcasting iteration, the algorithm module can optimize and update the spread spectrum modulation algorithm, compared with the prior art, the signal interference suppression capability of the wireless medical equipment during communication is obviously improved, and the wireless signal optimization efficiency is improved.
Description
Technical Field
The invention relates to the technical field of wireless communication, in particular to a wireless medical equipment interference suppression system based on synchronous state monitoring.
Background
Medical equipment refers to instruments, devices, instruments, materials or other items used alone or in combination in the human body, and also includes the required software. The medical equipment is the most basic element of medical treatment, scientific research, teaching, institutions and clinical discipline work, namely professional medical equipment and household medical equipment.
Along with the development of the intelligent internet of things technology, the medical equipment adopts a multi-wireless communication mode to exchange networking to achieve a better maintenance effect, but the medical equipment generates more signals during working, so that the transmission communication of the wireless signals can be influenced, the interference is not well inhibited, the network performance between networking communication is influenced, and the high stability required by the medical equipment cannot be met.
Disclosure of Invention
In order to overcome the above defects in the prior art, embodiments of the present invention provide a wireless medical device interference suppression system based on synchronous state monitoring, and the technical problem to be solved by the present invention is: the transmission communication of wireless signals is affected, interference is not well suppressed, and network performance between networking communication is affected.
In order to achieve the purpose, the invention provides the following technical scheme: a wireless medical equipment interference suppression system based on synchronous state monitoring comprises a central processing unit and a storage module, wherein the input end of the central processing unit is bidirectionally connected with the output end of the storage module, the input end of the central processing unit is connected with a receiving module, the input end of the receiving module is bidirectionally connected with a spread spectrum modulation module, the input end of the spread spectrum modulation module is connected with an algorithm module, the output end of the algorithm module is connected with the input end of the central processing unit, the input end of the receiving module receives a slave transmission module, the input end of the slave transmission module is connected with a first-class medical equipment module and a second-class medical equipment module, the output end of the slave transmission module is connected with a slave timer, the output end of the central processing unit is connected with a master transmission module, the output end of the central processing unit is connected with an approach module, the input end of the approach module is connected with a calibration module, the output end of the receiving module is connected with a main timer, and the output end of the main timer is connected with the input end of the storage module;
the central processing unit is used for processing the received and transmitted signals, the receiving module is used for receiving the communication signals transmitted by the slave transmission module, the spread spectrum modulation module is used for carrying out spread spectrum adjustment on the frequency of the signals received by the receiving module by using a spread spectrum modulation algorithm provided by the algorithm module, the algorithm module is used for learning the spread spectrum modulation algorithm to further optimize adjustment of the wireless signals, the master timer is used for carrying out timing monitoring when the receiving module receives the signals, the slave timer is used for carrying out timing when the slave transmission module receives the signals, the storage module is used for storing the algorithm and data of the master timer, the first-class medical equipment module is an important medical instrument, and the second-class medical equipment module is an auxiliary medical instrument.
When the wireless medical equipment needs to communicate during working, the main communication equipment sends a wireless communication signal to the receiving module through the slave transmission module, the slave timer starts to monitor the wireless medical equipment and carry out timing at the moment, after the receiving module receives the communication signal, the information is sent to the main timer, the main timer carries out timing monitoring after receiving the signal, the receiving module simultaneously sends the signal to the spread spectrum modulation module for signal spread spectrum modulation, the modulated signal has wider signal frequency, the anti-interference capability is effectively improved, the signal spread spectrum algorithm can be optimized after deep learning through the algorithm module, the signal processing efficiency is gradually improved, the signal is transmitted to a receiving signal end after being demodulated through the main transmission module after being stored through the central processing unit storage module and then being enhanced through the signal enhancement unit, and stable wireless signals received by a signal receiving end can be effectively increased through the spread spectrum modulation of the receiving module and the demodulation enhancement of the main transmission module, the method meets the signal receiving requirement, when a central processing module synchronously monitors that the time difference between a slave timer and a master timer of a slave transmission module is larger, the master timer is reset to time and the signals are transmitted through the master transmission module again, after the first-class medical equipment module and the second-class medical equipment module receive the signals transmitted by the master transmission module, a feedback signal is sent to the slave transmission module, the slave timer is updated after the signals are received by the slave transmission module, a central processing unit obtains accurate signal delay data by comparing the master timer and the slave timer, the suppression of signal interference is improved based on the synchronous state monitoring of the master timer and the slave timer, the interference suppression can be improved by repeating signal broadcasting iteration, an algorithm module can optimize and update a spread spectrum modulation algorithm, meanwhile, a proximity module can wirelessly obtain the information of the master timer of the central processing unit, and manual calibration is carried out through the proximity slave timer through a calibration module, the signal interference suppression capability of the wireless medical equipment during communication is obviously improved.
In a preferred embodiment, the main transmission module includes a signal generation unit, a signal enhancement unit, and a signal demodulation unit.
In a preferred embodiment, the signal generating unit is configured to transmit a signal transmission, the signal enhancing unit is configured to increase the signal transmission, and the signal demodulating unit is configured to demodulate the modulated signal into a signal source understood by the first type medical device and the second type medical device module.
In a preferred embodiment, the spread spectrum modulation module uses a lora spread spectrum modulation mode, which effectively improves the signal bandwidth.
In a preferred embodiment, the medical device module of the type includes a device body unit, a signal receiving unit, and a signal transmitting unit.
In a preferred embodiment, the device body unit is a medical device body, the signal receiving unit is used for receiving signals, and the signal transmitting unit is used for transmitting signals.
In a preferred embodiment, the first-class medical equipment module and the second-class medical equipment module have the same structure, and the first-class medical equipment module and the second-class medical equipment module are classified to ensure the communication priority of important medical equipment and optimize the interference suppression effect.
In a preferred embodiment, the proximity module is an NFC communication module, which is low in cost and convenient.
1. According to the invention, the central processing unit acquires accurate signal delay data by comparing the master timer with the slave timer, the suppression of signal interference is improved based on the synchronous state monitoring of the master timer and the slave timer, the interference suppression can be improved by repeating signal broadcasting iteration, and the algorithm module can optimize and update a spread spectrum modulation algorithm;
2. according to the invention, after the proximity module receives the information of the master timer of the central processing unit through the communication signal, the proximity module can be in close-range contact with the master transmission module and the slave transmission module through the NFC of the proximity module to carry out signal calibration, so that the influence of long-time fluctuation of signal transmission on the working state stability of the first-class medical equipment module and the second-class medical equipment module is avoided, and the correction capability is improved.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention.
Fig. 2 is a schematic structural diagram of a main transmission module according to the present invention.
Fig. 3 is a schematic diagram of a modular construction of a medical device of the present invention.
The reference signs are: the system comprises a central processing unit 1, a receiving module 2, a spread spectrum modulation module 3, an algorithm module 4, a main transmission module 5, a signal generating unit 501, a signal enhancing unit 502, a signal demodulating unit 503, a slave transmission module 6, a slave timer 7, a first-class medical equipment module 8, an equipment main body unit 801, a signal receiving unit 802, a signal sending unit 803, a second-class medical equipment module 9, a storage module 10, a main timer 11, a proximity module 12 and a calibration module 13.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a wireless medical equipment interference suppression system based on synchronous state monitoring, which comprises a central processing unit 1 and a storage module 10, wherein the input end of the central processing unit 1 is bidirectionally connected with the output end of the storage module 10, the input end of the central processing unit 1 is connected with a receiving module 2, the input end of the receiving module 2 is bidirectionally connected with a spread spectrum modulation module 3, the input end of the spread spectrum modulation module 3 is connected with an algorithm module 4, the output end of the algorithm module 4 is connected with the input end of the central processing unit 1, the input end of the receiving module 2 receives a slave transmission module 6, the input end of the slave transmission module 6 is connected with a first-class medical equipment module 8 and a second-class medical equipment module 9, the output end of the slave transmission module 6 is connected with a slave timer 7, the output end of the central processing unit 1 is connected with a master transmission module 5, the output end of the central processing unit 1 is connected with a proximity module 12, the input end of the proximity module 12 is connected with a calibration module 13, the output end of the receiving module 2 is connected with a main timer 11, and the output end of the main timer 11 is connected with the input end of the storage module 10;
the central processing unit 1 is configured to process a received and transmitted signal, the receiving module 2 is configured to receive a communication signal transmitted from the transmitting module 6, the spread spectrum modulation module 3 is configured to perform spread spectrum adjustment on a signal frequency received by the receiving module by using a spread spectrum modulation algorithm provided by the algorithm module 4, the algorithm module 4 is configured to learn a spread spectrum modulation algorithm, and further optimize adjustment of a wireless signal, the master timer 11 is configured to perform timing monitoring when the receiving module 2 receives a signal, the slave timer 7 is configured to perform timing when the slave transmitting module 6 receives a signal, the storage module 10 is configured to store an algorithm and data of the master timer 11, the first-class medical device module 8 is an important medical device, and the second-class medical device module 9 is an auxiliary medical device.
The main transmission module 5 comprises a signal generating unit 501, a signal enhancing unit 502 and a signal demodulating unit 503, the signal generating unit 501 is used for transmitting signals, the signal enhancing unit 502 is used for enhancing signal transmission, the signal demodulating unit 503 is used for demodulating modulated signals into signal sources which can be understood by a first-class medical device and a second-class medical device module 9, the spread spectrum modulating module 3 uses a lora spread spectrum modulating mode, the first-class medical device module 8 comprises a device main body unit 801, a signal receiving unit 802 and a signal transmitting unit 803, the device main body unit 801 is a medical device main body, the signal receiving unit 802 is used for receiving signals, the signal transmitting unit 803 is used for transmitting signals, the first-class medical device module 8 and the second-class medical device module 9 have the same structure, and important medical device communication priorities are ensured by classifying the first-class medical device module 8 and the second-class medical device module 9, and optimizing the interference suppression effect.
As shown in fig. 1 to 3, the embodiment specifically is: when the wireless medical equipment needs to communicate during working, the main communication equipment sends a wireless communication signal to the receiving module 2 through the slave transmission module 6, the slave timer 7 starts to monitor the wireless medical equipment at the moment and carries out timing, after the receiving module 2 receives the communication signal, information is sent to the main timer 11, the main timer 11 carries out timing monitoring after receiving the signal, the receiving module 2 sends the signal to the spread spectrum modulation module 3 to carry out signal spread spectrum modulation at the same time, the modulated signal has wider signal frequency, the anti-interference capability is effectively improved, the signal spread spectrum algorithm can be optimized after being deeply learned through the algorithm module 4, the signal processing efficiency is gradually improved, the signal is transmitted to a receiving signal end after being demodulated through the main transmission module 5 after being stored through the storage module 10 of the central processing unit 1, the signal is transmitted to the receiving signal end after being enhanced through the signal enhancement unit 502, and the signal receiving end termination can be effectively increased through the spread spectrum modulation of the receiving module 2 and the demodulation enhancement of the main transmission module 5 When a central processing module synchronously monitors that the time difference between a slave timer 7 and a master timer 11 of a slave transmission module 6 is larger, the master timer 11 is reset to time and the signals are transmitted again through the master transmission module 5 when the central processing module synchronously monitors that the time difference is larger, a first-class medical equipment module 8 and a second-class medical equipment module 9 send feedback signals to the slave transmission module 6 after receiving the signals from the transmission module 6 and update the slave timer 7, the central processing unit 1 obtains accurate signal delay data by comparing the master timer 11 and the slave timer 7, improves the suppression of monitoring signal interference based on the synchronous state of the master timer 11 and the slave timer 7, can perform repeated signal iteration to improve the interference suppression, a broadcast algorithm module 4 can optimize and update a spread spectrum modulation algorithm, and a proximity module 12 can wirelessly obtain the information of the master timer 11 of the central processing unit 1, and the slave timer 7 is close to and manually calibrated through the calibration module 13, so that the signal interference suppression capability during the communication of the wireless medical equipment is obviously improved, and the use requirement is met.
The output end of the central processing unit 1 is connected with a proximity module 12, the input end of the proximity module 12 is connected with a calibration module 13, and the proximity module 12 is an NFC communication module, so that the cost is low, and the NFC communication module is convenient and fast.
As shown in fig. 1-2, the embodiment specifically is: after the proximity module 12 receives the information of the master timer 11 of the central processing unit 1 through the communication signal, the proximity module can closely contact the master transmission module 5 and the slave transmission module 6 through the NFC of the proximity module to perform signal calibration, so that the influence of long-time fluctuation of signal transmission on the working state stability of the first-class medical equipment module 8 and the second-class medical equipment module 9 is avoided, and the correction capability is improved.
The working principle of the invention is as follows:
referring to the attached drawings 1-3 of the specification, when the wireless medical device needs to communicate during operation, the master communication device sends a signal to the receiving module 2 through the slave transmission module 6, the slave timer 7 starts to monitor the wireless medical device at the moment, the signal after timing monitoring modulation is carried out when the receiving module 2 receives the signal is stored through the storage module 10 of the central processing unit 1, then the signal is transmitted to the signal receiving end after being demodulated and enhanced through the master transmission module 5, when the central processing module monitors that the time difference of the slave timer 7 of the slave transmission module 6 is larger, the master timer 11 is reset and the signal is transmitted through the master transmission module 5 again, after the medical device module receives the signal transmitted by the master transmission module 5, a feedback signal is sent to the slave transmission module 6, the slave timer 7 is updated after the signal is received by the slave transmission module 6, the central processing unit 1 obtains accurate signal delay data by comparing the master timer 11 with the slave timer 7, based on the synchronous state monitoring of the master timer 11 and the slave timer 7, the suppression of signal interference is improved, the repeated signal broadcasting iteration can be carried out, the interference suppression is improved, the algorithm module 4 can optimize and update the spread spectrum modulation algorithm, compared with the prior art, the signal interference suppression capability during the communication of the wireless medical equipment is obviously improved, and the use requirement is met;
referring to the attached drawings 1-2 of the specification, after the proximity module 12 receives the information of the master timer 11 of the central processing unit 1 through the communication signal, the proximity module can be in close-range contact with the master transmission module 5 and the slave transmission module 6 through NFC of the proximity module to perform signal calibration, so that the influence of long-time fluctuation of signal transmission on the working state stability of the first-class medical equipment module 8 and the second-class medical equipment module 9 is avoided, and the correction capability is improved.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;
and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (4)
1. A wireless medical equipment interference suppression system based on synchronous state monitoring comprises a central processing unit (1) and a storage module (10), and is characterized in that: the input end of the central processing unit (1) is bidirectionally connected with the output end of the storage module (10), the input end of the central processing unit (1) is connected with the receiving module (2), the input end of the receiving module (2) is bidirectionally connected with the spread spectrum modulation module (3), the input end of the spread spectrum modulation module (3) is connected with the algorithm module (4), the output end of the algorithm module (4) is connected with the input end of the central processing unit (1), the input end of the receiving module (2) receives the slave transmission module (6), the input end of the slave transmission module (6) is connected with the first-class medical equipment module (8) and the second-class medical equipment module (9), the output end of the slave transmission module (6) is connected with the slave timer (7), the output end of the central processing unit (1) is connected with the master transmission module (5), and the output end of the central processing unit (1) is connected with the approach module (12), the input end of the proximity module (12) is connected with a calibration module (13), the output end of the receiving module (2) is connected with a main timer (11), and the output end of the main timer (11) is connected with the input end of the storage module (10);
the central processing unit (1) is used for processing a transmitting and receiving signal, the receiving module (2) is used for receiving a communication signal transmitted from the transmitting module (6), the spread spectrum modulation module (3) is used for carrying out spread spectrum adjustment on the frequency of the signal received by the receiving module (2) by using a spread spectrum modulation algorithm provided by the algorithm module (4), the algorithm module (4) is used for learning the spread spectrum modulation algorithm and further optimizing adjustment of the wireless signal, the master timer (11) is used for carrying out timing monitoring when the receiving module (2) receives the signal, the slave timer (7) is used for carrying out timing when the slave transmitting module (6) receives the signal, the storage module (10) is used for storing the algorithm and data of the master timer (11), one type of medical equipment module (8) is an important medical equipment, and the second type of medical equipment module (9) is an auxiliary medical equipment;
the medical device module (8) of one type comprises a device main body unit (801), a signal receiving unit (802) and a signal sending unit (803); the device main body unit (801) is a medical device main body, the signal receiving unit (802) is used for receiving signals, and the signal transmitting unit (803) is used for transmitting signals; the first-class medical equipment module (8) and the second-class medical equipment module (9) have the same structure; the proximity module (12) is an NFC communication module.
2. The wireless medical device interference suppression system based on synchronous state monitoring according to claim 1, wherein: the main transmission module (5) comprises a signal generation unit (501), a signal enhancement unit (502) and a signal demodulation unit (503).
3. The wireless medical device interference suppression system based on synchronous status listening of claim 2, wherein: the signal generating unit (501) is used for transmitting signals for transmission, the signal enhancing unit (502) is used for enhancing the signals for transmission, and the signal demodulating unit (503) is used for demodulating the modulation signals into signal sources which can be understood by the first-class medical equipment module (8) and the second-class medical equipment module (9).
4. The wireless medical device interference suppression system based on synchronous status listening of claim 1, wherein: the spread spectrum modulation module (3) uses a lora spread spectrum modulation mode.
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| CN202010658064.6A CN111770566B (en) | 2020-07-09 | 2020-07-09 | Wireless medical equipment interference suppression system based on synchronous state monitoring |
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| CN202010658064.6A CN111770566B (en) | 2020-07-09 | 2020-07-09 | Wireless medical equipment interference suppression system based on synchronous state monitoring |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7729776B2 (en) * | 2001-12-19 | 2010-06-01 | Cardiac Pacemakers, Inc. | Implantable medical device with two or more telemetry systems |
| CN1584757A (en) * | 2004-05-21 | 2005-02-23 | 杨桂臣 | Self-calibrating synchronous timing timer |
| CN102045133B (en) * | 2009-10-23 | 2013-04-03 | 中国科学院计算技术研究所 | Chip for wireless sensor network node and on-chip digital baseband system |
| US20110152970A1 (en) * | 2009-12-23 | 2011-06-23 | Medtronic Minimed, Inc. | Location-based ranking and switching of wireless channels in a body area network of medical devices |
| CN101938390B (en) * | 2010-08-31 | 2013-01-02 | 中山大学 | Method for handling signal interference between home network devices and system thereof |
| EP2884806B1 (en) * | 2013-12-13 | 2016-05-11 | Siemens Aktiengesellschaft | Timing control in an industrial control system |
| CN106254023B (en) * | 2016-08-09 | 2018-04-17 | 珠海优特物联科技有限公司 | A kind of method and system of master-slave equipment communication |
| CN107040988A (en) * | 2017-05-31 | 2017-08-11 | 徐州雷奥医疗设备有限公司 | A kind of wireless medical equipment disturbance restraining method monitored based on synchronous regime |
| US11233594B2 (en) * | 2017-12-19 | 2022-01-25 | Qualcomm Incorporated | Time synchronization for wireless communications |
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