CN108924513A - It is a kind of suitable for multifunction nursing bed computer remote monitor system - Google Patents

Abstract

A computer remote monitoring system suitable for multifunctional nursing beds, including multifunctional nursing beds, network cameras, transmission networks, cloud servers and computer clients; using C/S structure as the overall architecture of the system to monitor the status of multifunctional nursing beds The network camera and the computer client connect to a router that can access the Internet through WIFI wireless or wired connection, and the network camera and the computer client establish a point-to-point connection between the two through the cloud server; the computer client previews the patient's health in real time under the wide area network. status, perform voice interaction, and realize the control of the PTZ of the network camera and playback of the video stored in the Micro SD card. The present invention has a camera pan-tilt control function, a voice interaction function and a video playback function, and can monitor patients in real time throughout the whole process, thereby realizing scientific and humanized management of wards, and can well meet market demands.

Description

A computer remote monitoring system suitable for multifunctional nursing bed

technical field

The invention belongs to the field of medical service and nursing, and relates to a computer remote monitoring system for monitoring the health status of patients.

Background technique

Nowadays, medical personnel must go to the ward in person to check the health status of patients, which is also called ward rounds. If nurses have to check patients one by one, it will not only lead to uneven distribution of medical resources, but also waste a lot of time and energy of doctors. Some conditions require 24-hour monitoring, which undoubtedly greatly increases their workload. Similarly, because the patient's family lives far away from the hospital or is busy with work, it is impossible to know the patient's health status, which is a kind of distress for the patient and his family. At present, the video surveillance systems of most hospitals in my country have shortcomings such as one-way audio and video interaction, single monitoring information, and small monitoring range. And this system can solve this problem just by installing the computer client software of the system on the computers of medical staff and patients' family members. The patient's health status, and the patient's family members can interact with the hospitalized patients remotely through video at home, satisfying the spiritual comfort of both parties and achieving humanized management.

Contents of the invention

Aiming at the above-mentioned deficiencies, the present invention provides a computerized remote monitoring system suitable for multifunctional nursing beds.

The present invention is achieved through the following technical solutions.

A computerized remote monitoring system applicable to a multifunctional nursing bed according to the present invention includes a multifunctional nursing bed, a network camera, a transmission network, a cloud server and a computer client. The C/S structure is adopted as the overall framework of the system. The network camera monitoring the multifunctional nursing bed and the computer client can access the Internet router through WIFI wireless or wired connection, and the network camera and the computer client establish a point-to-point connection between the two through the cloud server. The computer client can preview the patient's health status in real time under the wide area network, perform voice interaction, and realize the control of the PTZ of the network camera and playback of the video stored in the Micro SD card.

Described multifunctional nursing bed refers to the multifunctional nursing bed that has been applied to patients in hospitals and can realize position and posture transformation on the market; integrated. Front-end monitoring equipment comprises camera, microphone, loudspeaker and cloud platform; Described transmission network comprises local area network and Internet; Described cloud server refers to P2P connection platform; Described computer client software uses Microsoft base class library MFC (Microsoft Foundation Classes) and the third-party audio and video decoding library FFmpeg are developed and implemented, and the software is installed and run on the Windows system.

When the IP camera and the computer client are connected to the network, the cloud server assists the IP camera and the client to penetrate each other's NAT gateway, thereby realizing a point-to-point connection between the two. After that, the two can perform normal media and signaling interaction. The video server of the embedded Linux system processes the analog audio and video signals collected by the front-end equipment and the control commands sent by the computer client network. The encoder unit of the video server compresses and encodes the original video signal into a media stream, which is transmitted to the client via the network. terminal; when the identity of the user of the client software is the family member of the patient, the health status of the family member of the patient using the multifunctional nursing bed can be previewed; The health status of patients using multifunctional nursing beds.

The benefit of the present invention is that: the present invention uses the P2P penetration solution of the cloud server, can directly establish a data transmission channel between the network camera and the computer client, and compared with the traditional hospital video surveillance system, avoids the traditional central video surveillance system. The defect of the server's own processing performance overcomes the bottleneck of occupying network bandwidth, and also saves the complicated operation of dynamic domain name resolution and port mapping. It is easy to operate and achieves plug-and-play; The permissions are also different. The client software performs identity authentication according to the user name and password, and provides the family members of the patients with the function of viewing the health status of their own patients' family members using the multifunctional nursing bed, while medical staff have the ability to display the multifunctional nursing bed under their jurisdiction The function of the health status of all patients, "one thing for two purposes", the system achieves precise monitoring; the computer client software has various functions, including camera pan/tilt control function, voice interaction function and video playback function, which greatly meets the needs of medical staff and medical staff. The needs of the patient's family.

Description of drawings

Fig. 1 is the overall frame diagram of the present invention.

Fig. 2 is a block diagram of the hardware structure of the network camera of the present invention.

Figure 3 is a system network topology diagram.

Figure 4 is a flowchart of the operation of the computer client software.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

Fig. 1 is the overall frame diagram of the present invention. A computerized remote monitoring system applicable to a multifunctional nursing bed according to the present invention includes a multifunctional nursing bed, a network camera, a cloud server and a computer client. The multifunctional nursing bed refers to the multifunctional nursing bed that can be used by patients in hospitals and can realize position and posture changes; the network camera is composed of a front-end monitoring device and a video server; first, the network camera is connected wirelessly or wired through WIFI Connect the router to ensure that the network camera is connected to the network normally; then, confirm that the P2P connection to the cloud platform is running normally; finally, ensure that the computer client is connected to the network normally, run the computer client software, and the video server can accept the request sent by the computer client. and deal with it accordingly. The system is based on the Client/Server framework to realize the mutual communication between the network camera and the computer client.

FIG. 2 is a schematic diagram of the hardware structure of the network camera of the present invention. The hardware core of the network camera is the Hi3518E chip of the industrial-grade embedded microcontroller HiSilicon. The SoC chip embeds the ARM9 processor core, integrates a new generation of ISP, optimizes the image processing algorithm before encoding and a new generation of H.264 encoder; also integrates DRAM, POR, RTC, AUDIO CODEC, Sensor level conversion and Various clock outputs. The network camera has a built-in RJ-45 interface, which supports 10/100M adaptive network connection speed. The working principle of the network camera is shown in Figure 2. On the one hand, when the light of the health condition of the patient using the multifunctional nursing bed is captured, it enters the camera and lands on the OmniVision CMOS image sensor OV9712; first, the video capture unit receives the BAYRE RGB video data output by the OV9712 through the video interface format, and after being processed by the ISP processing unit embedded in the unit, the processed YUV422 data is stored in the designated memory through the control bus interface; then, before starting the video encoding, the ARM software needs to be the external memory of the hardware encoder (DDR DSRAM) to allocate a buffer; finally, the H.264 encoder compresses and encodes the YUV422 data in the memory into an MPEG-4 video stream, which is divided into two channels, one under the control of the controller, and the video stream Through the RJ-45 network interface or WIFI wirelessly, it is sent to the LAN or the Internet according to the network transmission protocol; the other way is sent to the Micro SD card for storage. On the other hand, the audio signal input and output interface SIO is used to connect with the on-chip Audio CODEC chip; SIO receives the audio data transmitted through the internal bus, and transmits the audio data to the docked AUDIO through the I2S interface according to the set sampling rate. CODEC, AUDIO CODEC plays music after D/A conversion. At the same time, through the I2S interface, SIO receives the audio data after A/D conversion by the docked AUDIO CODEC, first stores it in FIFO, and then takes it away and stores it by the CPU, so as to complete the recording function and achieve the purpose of two-way voice interaction.

Fig. 3 is a network topology diagram of the system of the present invention. The cloud server is a P2P connection cloud platform, which consists of a Master and a server. The network camera reports to the Master through the network, and the Master obtains the unique identification number UID and IP network information of the network camera. After obtaining the information, the Master transmits the information of the network camera to several servers at the same time; Connection test, select a server with the best efficiency as the P2P server, and then perform P2P connection service; the computer client reports to the Master through the network, and the Master distributes the UID and IP information obtained from the computer client, and sends the computer client When the network camera and the computer client report to the same server, the P2P server will determine that the two parties have made a hole. After the hole is successfully punched, the network camera and the computer client will A two-way point-to-point connection can be made, and the computer client can directly obtain the video stream from the network video server; if the hole punching fails, the computer client will obtain the video stream from the streaming media forwarding server in the cloud.

Figure 4 is a flowchart of the operation of the computer client software. The computer client is the terminal of the monitoring system. It connects to the network through WIFI wireless or wired to access the video server. The computer client software is implemented on the Visual Studio 2010 development platform by using the Microsoft basic class library MFC. The client software uses the Ffmpeg library to decode the received H.264 video stream into YUV420 pixel data format, and then uses DirectDraw to directly display the YUV video data on the picture control, thus achieving the purpose of preview. In addition, the client software sends signaling to the embedded video server for remote monitoring, and the video server drives intelligent hardware to realize PTZ control. The computer client software includes a login module, a single-screen video monitoring module, a multi-screen video monitoring module, a voice interaction module, a PTZ control module and a video playback module. Medical staff and patients' family members have the functional authority to monitor multi-screen video in the computer client software. The flow chart of client software operation is shown in Figure 4.

For those of ordinary skill in the art, according to the teachings of the present invention, without departing from the principle and spirit of the present invention, the changes, modifications, replacements, and modifications made to the embodiments still fall under the protection of the present invention. within the law.

Claims (1)

1. it is a kind of suitable for multifunction nursing bed computer remote monitor system, it is characterized in that including multifunction nursing bed, network Video camera, transmission network, Cloud Server and computer client；Overall architecture using C/S structure as system monitors multi-functional The web camera and computer client of nursing bed can wirelessly or in wired connection access the router of internet by WIFI, Web camera and computer client pass through Cloud Server and establish point-to-point connection therebetween；Computer client is in wide area network Lower real-time video preview patient health status, carry out interactive voice, and be able to achieve to the holder of web camera carry out control and Micro SD card video is stored in be played back；

Described is multifunction nursing bed for the multifunction nursing bed of achievable pose transformation；The web camera is supervised by front end The video server for controlling equipment and built-in Linux operating system is integrated, and front end surveillance device includes camera, microphone, raises Sound device and holder；The transmission network includes local area network and Internet；The Cloud Server is P2P connecting platform；Institute The computer client software stated uses Microsoft Foundation class libraries MFC and third party's audio/video decoding library FFmpeg exploitation realization, software In the installation of Windows system, operation；

After web camera and computer client are even connected to the Net, Cloud Server assisted network video camera and client are penetrated pair The NAT gateway of side, to realize the two point-to-point connection；Later, the two can carry out normal media and Signalling exchange；Insertion The analog audio-video signal and computer client network that the video server of formula linux system acquires headend equipment send over Control instruction handled, the cell encoder of video server raw video signal compressed encoding at Media Stream, through net Network is transmitted to client；When the identity of the user of client software is family numbers of patients, can preview use multifunction nursing The family numbers of patients health status of bed；It, being capable of the pipe of preview oneself simultaneously when the identity of client software user is medical staff All health status using multifunction nursing bed patient of linchpin.