JP2011029898A - Emergency communication system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an emergency communication system which does not need to construct an exclusive network, and is few in the problem on security. <P>SOLUTION: An address signal is given to an ambulance computer 4 at predetermined intervals from a hospital computer 2. When patient data is transmitted, a starting recognizable signal-transmitting means 20 of the ambulance computer 4 returns a transmission-starting recognizable signal to the hospital computer 2 in response to the address signal. A data transmission means 22 of the ambulance computer 4 transmits the patient data acquired with an electrocardiograph and a camera connected to it as a reply to the address signal from the hospital computer 4. A data reception means 12 of the hospital computer 2 receives and acquires the patient data transmitted in such a way. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an emergency communication system for transmitting patient data such as patient biometric data acquired in an ambulance to a medical institution such as a hospital.

It has been proposed to obtain an electrocardiogram of a patient while the patient is being transported by an ambulance. This is because it is useful for the treatment after transporting to the hospital by acquiring the patient's condition as soon as possible. For example, a portable multi-function electrocardiograph with a solution function (such as Radar Sark (trademark) manufactured by Dainippon Sumitomo Pharma Co., Ltd.) is used as one suitable for such applications.
Furthermore, in order to give a treatment instruction from a doctor remotely from a hospital for a patient being transported by an ambulance, it has been proposed to acquire the state of the patient being transported by an ambulance (Patent Documents 1 and 2).

  A transmission system as shown in FIG. 1 is used for transmitting an electrocardiogram or the like from an ambulance to a hospital. Ambulances A1 and A2 are equipped with electrocardiographs (not shown). The ambulances A1 and A2 are provided with transmission devices S1 and S2 for transmitting the electrocardiogram information measured by the electrocardiograph to the hospital. The transmitting devices S1 and S2 have data communication cards F1 and F2 for connecting to an Internet access point through a mobile phone line.

  On the other hand, in hospital H, computers C1, C2, and C3 to which a fixed IP is assigned are installed. These computers C1, C2, and C3 are connected to the Internet via a dedicated router R.

  When sending electrocardiogram data from the ambulances A1 and A2 to the computers C1, C2 and C3 in the hospital H, the transmitters S1 and S2 are first dial-up connected to the Internet using the data communication cards F1 and F2. I do. Next, the IP addresses of the computers C1, C2, and C3 of the hospital H recorded in advance on the portable recording media SD1 and SD2 are acquired. Then, the IP address is specified, communication with any of the computers C1, C2, and C3 is established, and electrocardiogram data is transmitted via the Internet.

JP-A-11-178800 JP-A-11-33000

  In the system shown in FIG. 1, fixed IP addresses are assigned to the computers C1, C2, and C3 of the hospital H so that the ambulances A1 and A2 can make calls, and the transmitters S1 and S2 of the ambulances A1 and A2 The call is made to this fixed IP address. Therefore, if the fixed IP addresses of the computers C1, C2, and C3 of the hospital H leak to the outside for some reason, there is a security problem that the computer can be accessed via the Internet. In particular, when the computers C1, C2, and C3 are connected to a LAN in a hospital, information on other computers (such as personal information such as medical records) may be acquired via the LAN. Therefore, the computers C1, C2, and C3 have to construct a dedicated network different from the LAN to which other computers are connected.

  SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art and to provide an emergency communication system that does not require a dedicated network and has few security problems.

  In addition, when the ambulance computer is called from the hospital computer side due to security problems, the ambulance computer must always be connected to the Internet. However, when the ambulance computer is connected to the Internet via a dial-up connection, there is a problem that the connection is disconnected unless data communication is performed.

  The present invention solves the above-described problems, and even if the ambulance computer is connected to the Internet by dial-up connection, it can be connected regardless of whether or not necessary data communication is performed. It is an object of the present invention to provide an emergency communication system capable of maintaining the above.

(1) The emergency communication system according to the present invention is:
An emergency communication system comprising a medical institution computer used in a medical institution and an ambulance computer installed in an ambulance,
In order to identify each ambulance computer, the medical institution computer has a recording unit for recording an identification address assigned to each ambulance computer, a communication unit for communicating with the ambulance computer, and each ambulance computer recorded in the recording unit. The address signal transmitting means for transmitting an address signal including an identification address converted into a dynamic identification address to each ambulance computer via the communication unit using the identification address of the ambulance computer, and the ambulance computer via the communication unit Data receiving means for receiving patient data transmitted from
When the ambulance computer transmits patient data at the request of the ambulance computer and a communication unit for communicating with the medical institution computer, when the address signal from the medical institution computer is received via the communication unit, As a reply, using the dynamic identification address of the medical institution computer included in the address signal, a start recognizable signal transmitting means for transmitting a transmission start recognizable signal to the medical institution computer, and a communication unit After transmitting the transmission start recognizable signal to the medical institution computer, as a reply to the address signal from the medical institution computer, using the dynamic identification address of the medical institution computer included in the address signal, the medical institution Data transmission to send patient data to the institutional computer It is characterized in that it comprises a stage.

  Therefore, it can be called from the ambulance computer side, and the medical institution computer communicates with the ambulance computer using the identification address that is converted into a dynamic identification address, thereby avoiding unintended access from the outside. And there are few security problems.

(6) In the emergency communication system according to the present invention, when the medical institution computer transmits patient data at the request of the medical institution computer, the communication unit uses the identification address of the target ambulance computer recorded in the recording unit. Via a transmission start command means for sending a data transmission start command to the target ambulance computer, and the data transmission means of the ambulance computer is sent following the data transmission start command from the medical institution computer. The dynamic identification address of the medical institution computer included in the address signal is returned as a reply to the address signal coming in, or as a reply to the address signal sent after transmitting the transmittable recognition signal to the medical institution computer. Use the communication department for the medical institution computer It is characterized by having a data transmission means for transmitting the patient data.

  Therefore, it is possible to make a call from the medical institution side.

(7) In the emergency communication system according to the present invention, the ambulance computer receives the address signal from the medical institution computer and whether or not the patient data can be transmitted to the medical institution computer as a reply to the address signal. Using the dynamic identification address of the medical institution computer included in the signal, the apparatus is characterized by comprising status return means for sending a reply to the medical institution computer via a communication unit.

  Therefore, the current state of each ambulance computer can be known on the medical institution computer side.

(8) In the emergency communication system according to the present invention, the ambulance computer is disconnected when the connection means for connecting to the access point of the Internet by the communication unit and the communication with the access point are not continued. In order to prevent this, a dummy packet transmitting means for transmitting a dummy packet for establishing a connection at predetermined time intervals by a communication unit is provided.

  Therefore, the ambulance computer can continue to connect to the Internet, and there is no risk of taking time for reconnection.

(9) In the emergency communication system according to the present invention, the identification address assigned to each ambulance computer is acquired by the medical institution computer from an ambulance identification address server device capable of communicating with the medical institution computer. It is a feature.

  Therefore, when the identification address of the ambulance computer is added or changed, it can be dealt with only by changing the recorded contents of the ambulance identification address server device.

(10) The emergency communication system according to the present invention is characterized in that the identification address of each ambulance computer is a global IP address, the identification address of a medical institution computer, and a local IP address.

(12) An emergency communication system according to the present invention is an emergency communication system comprising a medical institution computer used in a medical institution and an ambulance computer mounted on an ambulance,
In order to identify each ambulance computer, the medical institution computer has a recording unit for recording an identification address assigned to each ambulance computer, a communication unit for communicating with the ambulance computer, and each ambulance computer recorded in the recording unit. The address signal transmitting means for transmitting the address signal including the identification address converted into the dynamic identification address to each ambulance computer via the communication unit using the identification address of the patient, and the patient at the request of the medical institution computer When transmitting data, the identification address of the target ambulance computer recorded in the recording unit is used, and the identification address converted into a dynamic identification address is sent to the target ambulance computer via the communication unit. Via a communication unit, a transmission start command means for transmitting a data transmission start command including, And a data receiving means for receiving patient data Kyusha transmitted from the computer,
The ambulance computer includes a communication unit for communicating with the medical institution computer, and a reply to the address signal sent following the data transmission start command from the medical institution computer. Data transmission means for transmitting patient data to the medical institution computer via a communication unit using a dynamic identification address is provided.

  Therefore, while being able to be called from the medical period computer side, the medical institution computer communicates with the ambulance computer using the identification address converted into the dynamic identification address, thereby avoiding unintended access from the outside. And there are few security problems.

(17) In the emergency communication system according to the present invention, the ambulance computer receives an address signal from the medical institution computer and whether or not the patient data can be transmitted to the medical institution computer as a reply to the address signal. Using the dynamic identification address of the medical institution computer included in the signal, the apparatus is characterized by comprising status return means for sending a reply to the medical institution computer via a communication unit.

  Therefore, the current state of each ambulance computer can be known on the medical institution computer side.

(18) In the emergency communication system according to the present invention, the ambulance computer is disconnected if the connection means for connecting to the Internet access point by the communication unit and the communication with the access point continue. In order to prevent this, a dummy packet transmitting means for transmitting a dummy packet for establishing a connection at predetermined time intervals by a communication unit is provided.

  Therefore, the ambulance computer can continue to connect to the Internet, and there is no risk of taking time for reconnection.

(19) In the emergency communication system according to the present invention, the identification address assigned to each ambulance computer is acquired by the medical institution computer from an ambulance identification address server device capable of communicating with the medical institution computer. It is a feature.

  Therefore, when the identification address of the ambulance computer is added or changed, it can be dealt with only by changing the recorded contents of the ambulance identification address server device.

(20) The emergency communication system according to the present invention is characterized in that the identification address of each ambulance computer is a global IP address and the identification address of the medical institution computer is a local IP address.

(22) An emergency communication system according to the present invention is an emergency communication system comprising a medical institution computer used in a medical institution and an ambulance computer mounted on an ambulance,
The medical institution computer identifies each ambulance computer from the ambulance computer via the recording section for recording the identification address assigned to each ambulance computer, the communication section for communicating with the ambulance computer, and the communication section. Data receiving means for receiving transmitted patient data;
The ambulance computer has a communication unit for communicating with a medical institution computer, connection means for connecting to an Internet access point by the communication unit, and the connection when there is no communication with the access point. In order to prevent disconnection, the dummy packet transmitting means for transmitting a dummy packet for establishing a connection every predetermined time by the communication unit, and the patient data to the medical institution computer via the communication unit And a data transmitting means for transmitting.

  Therefore, the ambulance computer can continue to connect to the Internet, and there is no risk of taking time for reconnection.

(26) In the emergency communication system according to the present invention, the data transmission means uses the dynamic identification address of the medical institution computer included in the address signal as a reply to the address signal from the medical institution computer. It is characterized by transmitting patient data to a computer.

  Accordingly, since the medical institution computer communicates with the ambulance computer using the identification address converted into the dynamic identification address, unintended access from the outside can be avoided, and there are few security problems.

  In the present invention, the “identification address” refers to an address for specifying a computer or the like for communication, and in the embodiment, this corresponds to an IP address. Further, when the IP address includes a port number, the IP address includes the port number.

  “Address signal transmission means” means means for transmitting a signal including at least its own identification address. In the embodiment, the state request transmission process shown in the state K1 of FIG. 8 corresponds to this.

  In the embodiment, the “data receiving means” corresponds to the data reception recording process shown in the state K5 of FIG.

  The “start recognizable signal transmitting means” means means for transmitting a signal including at least a transmission start recognizable signal. In the embodiment, the transmission start notification reply process in the state J4 in FIG. 7 corresponds to this.

  The “transmission start recognizable signal” means at least a signal for recognizing that data transmission is started at the receiving party, and “transmission start notification” corresponds to this in the embodiment. In addition, when the “transmission start notification” is not used and the other party recognizes the start of data transmission based on the data transmitted at the beginning of a series of data transmission, the first transmitted data also corresponds to this.

  In the embodiment, the “data transmission unit” corresponds to the data transmission process in the state J6 in FIG.

  In the embodiment, the “transmission start command means” corresponds to the transmission start command transmission process in the state K3 in FIG.

  “Reply means” refers to means for making some reply to the address signal. “Status return means” refers to means for returning its own status in response to an address signal. In the embodiment, the status J1 and J8 response processing in FIG. 7 corresponds to this.

  In the embodiment, the “connection means” corresponds to the connection process in the state J10 in FIG.

  In the embodiment, the “dummy packet transmission unit” corresponds to the PING transmission process in the state J2 of FIG.

  “Dummy packet” refers to a packet transmitted for the purpose of maintaining a connection to the Internet.

  The “program” is a concept that includes not only a program that can be directly executed by the CPU, but also a source format program, a compressed program, an encrypted program, and the like.

It is a block diagram of the conventional emergency communication system. It is a functional block diagram of the emergency communication system by one Embodiment of this invention. It is a hardware block diagram of the emergency communication system of FIG. It is a figure which shows the hardware constitutions of hospital computer C11. It is a figure which shows the hardware constitutions of ambulance computer MC1. It is a figure which shows the flow of a process in the case of transmitting patient data by operation from the ambulance side. The process by the ambulance side control program is shown as a state transition diagram. The process by the hospital side control program is shown as a state transition diagram. It is a figure which shows the example of object ambulance list data. It is a figure which shows the example of a display in the touchscreen display 52 of ambulance computer MC1. It is a figure which shows the flow of a process in the case of transmitting patient data by operation from the hospital side. It is an example of data which shows the state of each ambulance computer. It is a hardware block diagram of the emergency communication system by other embodiment. It is a figure which shows the example of object ambulance list data recorded on the ambulance identification address server apparatus AS.

1. Functional Block Diagram FIG. 2 shows a functional block diagram of an emergency communication system according to one embodiment of the present invention. A hospital computer 2 which is a medical institution computer and an ambulance computer 4 are provided. In the figure, only one hospital computer 2 and one ambulance computer 4 are displayed, but a plurality of them are arranged.

  The hospital computer 2 includes a recording unit 6, an address signal transmission unit 8, a transmission start command unit 10, a data reception unit 12, and a communication unit 14. The ambulance computer 4 includes a communication unit 16, a reply unit 18, a start recognizable signal transmission unit 20, and a data transmission unit 22.

  In this embodiment, each ambulance computer 4 is given a fixed identification address. The hospital computer 2 is also given an identification address. However, this identification address is converted into a dynamic identification address and given to the ambulance computer 4.

  The address signal transmission means 8 of the hospital computer 2 reads the identification address of each ambulance computer 4 recorded in the recording unit 6 and transmits an address signal to each ambulance computer 4 via the communication unit 14. This address signal includes information of an identification address assigned to the hospital computer 2 for reply. However, this identification address is converted into a dynamic identification address and given to the ambulance computer 4.

  The reply means 18 of the ambulance computer 4 that has received this address signal via the communication unit 16 replies to the hospital computer 2 via the communication unit 16 that at least the address signal has been received. Even if the ambulance computer 4 receives the address signal, the ambulance computer 4 may not reply anything except when necessary.

  In particular, when it is not necessary to transmit patient data (at least data including patient biometric data), the above process is repeated. When the ambulance computer 4 side informs the hospital computer 2 that patient data is to be transmitted, processing is performed as follows.

  When the address signal is received from the hospital computer 2, the reply means 18 replies to it as described above if it is normal. When transmitting patient data, the start recognizable signal transmission means 20 of the ambulance computer 4 returns a transmission start recognizable signal to the hospital computer 2 in response to the address signal. Thereby, the hospital computer 2 can know that patient data is continuously sent from the ambulance computer 4.

  Subsequently, the data transmission means 22 of the ambulance computer 4 transmits the patient data acquired by an electrocardiograph or camera connected thereto as a reply to the transmission request command which is a reply request from the hospital computer 2.

  The data receiving means 12 of the hospital computer 2 receives and acquires the patient data transmitted in this way.

  As described above, patient data can be transmitted to the hospital computer 2 in response to a request from the ambulance computer 4.

  On the other hand, in this embodiment, patient data can be transmitted in response to a request from the hospital computer 2. In this case, it is preferable that the reply means 18 of the ambulance computer 4 returns whether or not the patient data can be transmitted at present in response to the address signal from the hospital computer 2. For example, whether the ambulance computer 4 is busy exchanging patient data with another hospital computer 2 and cannot send patient data to the confirmation-source hospital computer 2. The patient data is not exchanged with other hospital computers 2, and it is returned as to whether or not it is in a wait state in which patient data can be transmitted to the confirming hospital computer 2. As a result, the hospital computer 2 can know whether each ambulance computer 4 is currently busy or in a wait state.

When requesting transmission of patient data from the hospital computer 2 side, the transmission start command means 10 of the hospital computer 2 sends a transmission start command to a specific ambulance computer 4 (any one of the ambulance computers 4 in the above-mentioned weight state). Is transmitted, and then a transmission request command is transmitted. As a result, the ambulance computer 4 that has received the transmission start command knows that the hospital computer 2 is requesting transmission of patient data. Therefore, the data transmission means 22 of the ambulance computer 4 transmits the patient data as a reply to the transmission request command sent following the transmission start command.

2. Overall Configuration FIG. 3 shows an overall configuration for realizing the emergency communication system according to the embodiment of FIG. The hospital H1 is provided with hospital computers C11, C12, and C13. These hospital computers C11, C12, and C13 are connected to a hospital local area network (LAN) L1. In addition to these hospital computers C11, C12, and C13, the hospital local area network L1 is connected to a computer that records the patient's medical records and the like. The hospital computers C11, C12, and C13 are connected to the Internet IN via the router R1 and the firewall FW1.

  In this embodiment, using the HTTP protocol, the router R1 converts the local IP address given to the hospital computers C11, C12, and C13 into a global IP address and communicates with the ambulance computers A1, A2, and A3. I have to.

  For example, it is assumed that the local IP address given to the hospital computer C11 is “111.23.XXX.56”. When the hospital computer C11 communicates with the ambulance computer A1, the local IP address “111.23.XXX.56” is added as the transmission source address and transmitted. Receiving this, the router R1 converts the local IP address “111.23.XXX.56” into the global IP address “123.34.XXX.34: 2002” of the router R1, and transmits it to the ambulance computer A1. . “: 2002” is a dynamically assigned port number. Since the router R1 records the correspondence table between the local IP address and the global IP address, the reply from the ambulance computer A1 can be correctly given to the hospital computer C11.

  In this way, the IP addresses of the hospital computers C11, C12, and C13 do not flow out. Therefore, it is possible to adopt a configuration with a low possibility of being accessed from the outside.

  In other hospitals H2, hospital computers C21, C22, and C23 are connected to the Internet IN with the same configuration. Although only the hospitals H1 and H2 are shown in the figure, other hospitals exist and have the same configuration.

  The ambulance A1 is equipped with devices such as an electrocardiograph CG1 for measuring a patient's electrocardiogram. The output of the electrocardiograph CG1 etc. is taken into the ambulance computer MC1. The ambulance computer MC1 has a mobile phone communication unit, and can be connected to the Internet IN via the connection device CC.

The other ambulances A2 and A3 have the same configuration. Although only the ambulances A1, A2, and A3 are shown in the figure, there are other ambulances and have the same configuration.

3. Hardware configuration
(1) Hardware configuration of hospital computer FIG. 4 shows the hardware configuration of the hospital computer C11. A memory 30, a display 32, a LAN communication circuit 34, a hard disk 38, a mouse / keyboard 40, and a CD-ROM drive 46 are connected to the CPU 36. The memory 30 serves as a work area for the CPU 36. The LAN communication circuit 34 is a circuit for connecting to the in-hospital local network L1. The mouse / keyboard 40 is used by an operator to input commands and the like.

  The hard disk 38 stores an operating system (for example, Microsoft Windows ™) 42, a hospital control program 44, and a target ambulance list 45. The hospital side control program 44 performs its function in cooperation with the operating system 42. Note that the hospital-side control program 44 may function independently without cooperating with the operating system 42. Both the operating system 42 and the hospital control program 44 are installed on the CD-ROM 48 through the CD-ROM drive 46. As shown in FIG. 9, the target ambulance list 45 records the IP addresses of ambulance computers installed in ambulances that may bring patients to the hospital.

  The hardware configuration of other hospital computers is the same.

(2) Hardware configuration of ambulance computer FIG. 5 shows the hardware configuration of the ambulance computer MC1. A memory 50, a touch panel display 52, a mobile phone communication circuit 54, a CD-ROM drive 56, a flash memory 62, a LAN communication circuit 68, and a USB camera 74 are connected to the CPU 60. The memory 50 serves as a work area for the CPU 60. The touch panel display 52 displays information to the operator and receives instructions. The mobile phone communication circuit 54 is a communication circuit for performing data communication using a mobile phone line. For example, NTT Corporation FOMA (trademark) card can be used.

  The LAN communication circuit 68 is connected to an electrocardiograph / blood pressure monitor 70 and a fixed camera 72, and communicates with them to exchange data. The electrocardiograph / sphygmomanometer 70 is for measuring an electrocardiogram and blood pressure of a patient being transported by an ambulance, and for example, Radar Sark (trademark) manufactured by Dainippon Sumitomo Pharma Co., Ltd. can be used. The fixed camera is a camera fixed at a predetermined position of the ambulance in order to take an image of the state of the patient being conveyed by the ambulance.

  The USB camera 74 is a camera mounted on an emergency crew's helmet or the like, and is connected to the ambulance computer MC1 by a long cord (or wireless communication). With the USB camera, it is possible to take an image of a patient's situation before being put on an ambulance (for example, while being transported to an ambulance on a stretcher).

  The flash memory 62 stores an operating system 64 and an ambulance side control program 66. The ambulance side control program 66 performs its function in cooperation with the operating system 64. Note that the ambulance side control program 66 may function independently without cooperating with the operating system 64. Further, both the operating system 64 and the ambulance-side control program 66 are installed on the CD-ROM 58 through the CD-ROM drive 56.

The hardware configuration of other ambulance computers is the same.

4). Data transmission processing
(1) Transmission of patient data by operation from the ambulance side FIG. 6 shows the flow of processing when patient data is transmitted to the hospital, triggered by the operation from the ambulance A1 side. FIG. 7 shows a state transition diagram of the ambulance side control program 66, and FIG. 8 shows a state transition diagram of the hospital side control program 44.

  In this embodiment, a status request is transmitted as an address signal every predetermined time from the hospital computer side to the ambulance computer, and in response thereto, the ambulance computer returns the current status.

  When the ambulance computer MC1 of the ambulance A1 is started up, the CPU 60 uses the mobile phone communication circuit 54 to call a pre-recorded access point and connect to the Internet (see state J10 in FIG. 7). As a result, the ambulance computer MC1 is connected to the Internet.

  When the connection to the access point is completed, the ambulance computer MC1 enters an unconnected (wait) state J3 shown in FIG. Here, the unconnected state means a state where the ambulance A1 is not transmitting patient data to any hospital. In this state, the CPU 60 of the ambulance A1 is waiting for a state request sent from each hospital H1, H2.

  On the other hand, the CPU 36 of the hospital computer C22 of the hospital H2 is in the state request transmission state K1 shown in FIG. Therefore, a status request is sequentially transmitted to the ambulances in the target ambulance list recorded in advance on the hard disk 38 by using the IP addresses at predetermined time intervals. When making this status request, the hospital computer C22 adds its own local IP address as a reply address and transmits it. This local IP address is converted into a dynamic global IP address (referred to as a translated IP address) by the router R2 and given to the ambulance computer MC1.

  The CPU 60 of the ambulance computer MC1 that has received the status request returns the current status (= not connected) to the converted IP address of the hospital computer C22 (see status J1 in FIG. 7). When completing the reply, the CPU 60 returns to the unconnected state J3.

  As described above, when the patient is not being transported by the ambulance side or the hospital side, the ambulance computer MC1 repeatedly returns an unconnected state in response to the status request from the hospital computer C22.

  The ambulance computer MC1 receives the status request from any hospital and returns the status, so that the connection to the Internet via the access point is maintained. However, if the hospital computer of any hospital is turned off, the status request will not arrive. If there is no exchange with the Internet through the access point of the ambulance computer MC1 for a predetermined time or more, the telephone connection to the access point will be disconnected. Once the connection to the access point is disconnected, it takes time to establish the connection again.

  Therefore, in this embodiment, when there is no status request from the hospital computer for 10 seconds using the timer, the CPU 60 of the ambulance computer MC1 transmits a dummy packet to maintain the connection to the Internet. In this embodiment, a dummy packet is transmitted by transmitting a PING signal to a virtual IP address (non-existent IP address) (see state J2 in FIG. 7). When the dummy packet is transmitted, the CPU 60 resets a timer for measuring 10 seconds. In this manner, the ambulance computer MC1 is kept connected to the Internet even when there is no status request from any hospital computer.

  Next, it is assumed that the patient is put on the ambulance A1 and heads for the hospital H2. At this time, a case will be described in which patient data such as an electrocardiograph CG1 and a camera mounted on the ambulance A1 is sent to the hospital computer C22 of the hospital H2 during transportation.

  The CPU 60 of the ambulance computer MC1 records in the memory 50 at any time which hospital computer has transmitted the status request. Then, as shown in FIG. 10A, a list of hospital computers that have transmitted the status request is displayed on the screen of the touch panel display 52. The member (or paramedic) of the ambulance A1 operates the touch panel display 52 and selects any one of the computers C21, C22, and C23 of the hospital H2 that is about to go. Here, it is assumed that the computer C22 is selected.

  When the hospital computer C22 is selected, the CPU 60 of the ambulance computer MC1 returns a transmission start notification in response to a status request from the hospital computer C22 next (see (1) in FIG. 6). That is, the state J3 in FIG.

  Receiving this, the CPU 36 of the hospital computer C22 transmits a transmission start command to the ambulance computer MC1 as a status request (see (2) in FIG. 6). That is, the state K2 in FIG. 8 is shifted to the state K3.

  Receiving this, the CPU 60 of the ambulance computer MC1 returns “permission” indicating that the patient data can be transmitted (see (3) in FIG. 6). That is, the state J4 in FIG.

  The CPU 36 of the hospital computer C22 that has received the permission transmits a transmission request command as a status request to the ambulance computer MC1 (see (4) in FIG. 6). That is, the state K3 in FIG. 8 is shifted to the state K4.

  Upon receiving the transmission request command, the ambulance computer MC1 returns patient data to the hospital computer C22 (see (5) in FIG. 6). That is, the state J5 in FIG.

  Thereafter, the patient data is transmitted and recorded by repeating the process in which the ambulance computer MC1 returns the patient data in response to the transmission request command from the hospital computer C22. That is, it is in the state J6 in FIG. In this embodiment, the transmission interval of patient data is set every 200 milliseconds, and the transmission speed is 115 Kbps.

  Next, when it is desired to stop transmission of patient data by an operation from the ambulance computer MC1, the following is performed. The member of the ambulance A1 presses the data transmission stop button from the screen of FIG. 10B displayed on the touch panel display 52 of the ambulance computer MC1.

  As a result, the CPU 60 of the ambulance computer MC1 returns a transmission end notification in response to the next transmission request command (see (6) in FIG. 6). That is, the state J6 in FIG.

  The CPU 36 of the hospital computer C22 that has received this transmission end notification recognizes the end of patient data transmission and enters a state of transmitting a status request every predetermined time (see (7) in FIG. 6). That is, the state K4 in FIG. 8 is shifted to the state K1.

  The CPU 60 of the ambulance computer MC1 that has received the status request returns a response indicating that it is in an unconnected state (see (8) in FIG. 6). That is, the state J7 in FIG.

  Even during the transmission of the patient data, the ambulance computer MC1 is requested to receive a status from the other hospital computer C11. For example, it is assumed that a status request is made from the hospital computer C11 of the hospital H1 to the ambulance computer MC1 at the timing shown in (10) of FIG. At this time, the ambulance computer MC1 is exchanging patient data with the other computer C22 and is in the connected state (busy state) in FIG. Therefore, the ambulance computer MC1 returns a busy state that is already connected to another computer.

(2) Acquisition of patient data by operation from hospital side In the above, the case where a hospital is selected by operation from the ambulance side and patient data is transmitted has been described. However, as will be described below, it is also possible to select an ambulance by operation from the hospital side and acquire patient data. A processing flow at this time is shown in FIG.

  Here, a case will be described in which patient data is acquired by an operation on the hospital H2 side while the patient is being transported toward the hospital H2 by the ambulance A1. As described above, the hospital computer C22 sequentially issues a status request to each of the target ambulances recorded in FIG. The hospital computer C22 receives this reply and records it in the memory 30 as shown in FIG.

  As shown in FIG. 12, ambulances A1 and A2 are currently unconnected and patient data can be transmitted, and ambulance A4 is currently exchanging patient data with another hospital computer C12. It is recorded that patient data cannot be transmitted to the hospital computer C22. It is recorded that the ambulance A3 does not reply to the status request within a predetermined time due to power-off or out of service area of the mobile phone.

  The CPU 36 of the hospital computer C22 displays the state of each ambulance computer on the display 32 based on FIG. The operator of the hospital computer C22 selects the ambulance A1 with the mouse / keyboard 40 while viewing the display 32.

  As a result, the CPU 36 of the hospital computer C22 transmits a transmission start command as a status request to the computer MC1 of the ambulance A1 (see (21) in FIG. 11). That is, the state K2 in FIG. 8 is shifted to the state K3.

  Receiving this, the CPU 60 of the ambulance computer MC1 returns “permission” indicating that the patient data can be transmitted (see (22) in FIG. 11). That is, the state J3 in FIG.

  The CPU 36 of the hospital computer C22 that has received the permission transmits a transmission request command as a status request to the ambulance computer MC1 (see (23) in FIG. 11). That is, the state K3 in FIG. 8 is shifted to the state K4.

  Upon receiving the transmission request command, the ambulance computer MC1 returns patient data to the hospital computer C22 (see (24) in FIG. 11). That is, the state J5 in FIG.

  Thereafter, the patient data is transmitted and recorded by repeating the process in which the ambulance computer MC1 returns the patient data in response to the transmission request command from the hospital computer C22. That is, it is in the state J6 in FIG.

  Next, when it is desired to stop the acquisition of patient data by an operation from the hospital computer C22 side, the following is performed. The operator of the hospital computer C22 operates the mouse / keyboard 40 while viewing the display 32, and selects the data acquisition stop button.

As a result, the CPU 36 of the hospital computer C22 stops transmitting the transmission request command and transmits a status request to the ambulance computer MC1 (see (25) in FIG. 11). That is, the state transitions from the state K4 in FIG. 8 to the state K1. In this way, transmission of patient data is stopped.

5. Other embodiments
(1) In the above embodiment, transmission of patient data is started and ended by an operation from the ambulance side. In addition, transmission of patient data is started and ended by an operation from the hospital side. However, the transmission of patient data may be started by an operation from the ambulance side, and the transmission of patient data may be ended by an operation from the hospital side. Alternatively, transmission of patient data may be started by an operation from the hospital side, and transmission of patient data may be terminated by an operation from the ambulance side.

(2) In the above embodiment, the connection to the Internet by the CPU 60 of the ambulance computer MC1 is maintained by transmitting a PING signal to a virtual IP address (non-existent IP address) and transmitting a dummy packet. ing.

  However, if the line can be maintained, a dummy packet by TCP / IP or LCP may be transmitted.

(3) In the above embodiment, the target ambulance list shown in FIG. 9 is recorded in advance on the hard disk 38 of each hospital computer C11, C12. However, as shown in FIG. 13, an ambulance identification address server AS connected to the Internet IN is provided, and the ambulance identification address server AS is accessed from each hospital computer C11, C12. You may do it.

  For example, a list of target ambulances as shown in FIG. 14 is recorded in the ambulance identification address server apparatus AS. In this list, the jurisdiction indicates the jurisdiction of the fire department. Since each hospital computer C11, C12... Is informed of the IP address of the ambulance identification address server device AS, each hospital computer C11, C12. A request for ambulance list data can be transmitted and the data received as a reply. Each hospital computer C11, C12,... That has received the list of target ambulances sequentially transmits a status request to the ambulance in the district to which its hospital belongs.

  If a request for the target ambulance list data is transmitted from each hospital computer C11, C12,... To the ambulance identification address server device AS every predetermined time (for example, every hour), the target ambulance is stored. When there is a change in the number or configuration, it is only necessary to update the target ambulance list data of the ambulance identification address server device AS, which is highly convenient.

(4) In the above embodiment, if the current position of the ambulance acquired by the GPS receiver is included in the reply data to the status request, this is displayed on the display 32 or the like in the hospital computer, and each ambulance is displayed. The position can also be grasped.

(5) In the above embodiment, an image of a camera attached to the helmet of an emergency crew may be transmitted as patient data.

(6) In each of the above embodiments, the mobile phone communication circuit 54 is used to connect to the Internet by dial-up connection. However, connection to the Internet may be performed using a wireless LAN or the like.

(7) In the above embodiment, transmission of patient data can be started based on any request from an ambulance computer or a medical institution computer. However, it may be possible to start transmission of patient data based only on a request from an ambulance computer. In addition, transmission of patient data may be started based only on a request from a medical institution computer.

(8) In the above embodiment, considering the security problem, the global IP address on the hospital side is not disclosed to the ambulance computer. However, if security issues are not taken into account, in the prior art shown in FIG. 1, dummy packet transmission means for transmitting dummy packets to the access point may be provided. In this case, the effect of ensuring security cannot be obtained, but the effect of maintaining connection can be obtained. In other words, in the case of the prior art, if there is no communication with the access point for a predetermined time, the line is disconnected and it has to be reconnected. On the other hand, by providing dummy packet transmission means, line connection is maintained, and the above problem can be solved.

(9) In the above embodiment, a hospital has been described as an example of a medical institution. However, the present invention can be similarly applied to an institution such as a clinic that can transport a patient by an ambulance.

Claims (27)

An emergency communication system comprising a medical institution computer used in a medical institution and an ambulance computer installed in an ambulance,
The medical institution computer is
A recording unit for recording an identification address assigned to each ambulance computer to identify each ambulance computer;
A communication unit for communicating with an ambulance computer;
Address signal transmitting means for transmitting an address signal including an identification address converted to a dynamic identification address to each ambulance computer via the communication unit using the identification address of each ambulance computer recorded in the recording unit; ,
Data receiving means for receiving patient data transmitted from an ambulance computer via a communication unit,
The ambulance computer is
A communication unit for communicating with a medical institution computer;
When transmitting patient data at the request of an ambulance computer, when receiving an address signal from a medical institution computer via a communication unit, as a response to the address signal, the dynamic institution of the medical institution computer included in the address signal Start recognizable signal transmitting means for transmitting a transmission start recognizable signal to the medical institution computer using the identification address;
After transmitting a transmission start recognizable signal to the medical institution computer via the communication unit, the dynamic identification address of the medical institution computer included in the address signal is returned as a reply to the address signal from the medical institution computer. Using data transmission means for transmitting patient data to the medical institution computer;
An emergency communication system comprising: A recording unit for recording an identification address assigned to each ambulance computer to identify each ambulance computer;
A communication unit for communicating with an ambulance computer;
Address signal transmitting means for transmitting an address signal including an identification address converted to a dynamic identification address to each ambulance computer via the communication unit using the identification address of each ambulance computer recorded in the recording unit; ,
Data receiving means for receiving patient data transmitted from an ambulance computer via a communication unit;
Medical institution computer equipped with. A communication unit for communicating with a medical institution computer;
When transmitting patient data at the request of an ambulance computer, when receiving an address signal from a medical institution computer via a communication unit, as a response to the address signal, the dynamic institution of the medical institution computer included in the address signal Start recognizable signal transmitting means for transmitting a transmission start recognizable signal to the medical institution computer using the identification address;
After transmitting a transmittable recognition signal to the medical institution computer via the communication unit, the dynamic identification address of the medical institution computer included in the address signal is used as a reply to the address signal from the medical institution computer. Data transmitting means for transmitting patient data to the medical institution computer;
Ambulance computer equipped with. A medical institution computer having a recording unit for recording an identification address assigned to each ambulance computer and a communication unit for communicating with the ambulance computer to identify each ambulance computer,
An address signal transmitting means for transmitting an address signal including an identification address converted into a dynamic identification address to each ambulance computer via the communication unit, using the identification address of each ambulance computer recorded in the recording unit;
Data receiving means for receiving patient data transmitted from an ambulance computer via a communication unit,
Medical institution program to function as. An ambulance computer having a communication unit for communicating with a medical institution computer;
When transmitting patient data at the request of an ambulance computer, when receiving an address signal from a medical institution computer via a communication unit, as a response to the address signal, the dynamic institution of the medical institution computer included in the address signal Start recognizable signal transmitting means for transmitting a transmission start recognizable signal to a medical institution computer using the identification address;
After transmitting a transmittable recognition signal to the medical institution computer via the communication unit, the dynamic identification address of the medical institution computer included in the address signal is used as a reply to the address signal from the medical institution computer. Data transmitting means for transmitting patient data to the medical institution computer,
Ambulance program to function as. In the system, apparatus or program according to any one of claims 1 to 5,
The medical institution computer is
When patient data is transmitted at the request of a medical institution computer, the data transmission start command is sent to the ambulance computer as a target via the communication unit using the identification address of the ambulance computer as a target recorded in the recording unit. Transmission start command means for transmitting
The data transmission means of the ambulance computer is
The address signal as a reply to the address signal sent following the data transmission start command from the medical institution computer, or as a reply to the address signal sent after sending the transmittable recognition signal to the medical institution computer And a data transmission means for transmitting patient data to the medical institution computer via a communication unit using the dynamic identification address of the medical institution computer included in the computer. The system, apparatus or program of claim 6.
The ambulance computer receives an address signal from the medical institution computer and determines whether or not patient data can be transmitted to the medical institution computer as a reply to the address signal. And a status reply means for replying to the medical institution computer via a communication unit using a unique identification address. In the system, apparatus, or program in any one of Claims 1-7,
The ambulance computer is
Connection means for connecting to an Internet access point by the communication unit;
Dummy packet transmitting means for transmitting a dummy packet for establishing a connection every predetermined time by a communication unit in order to prevent the connection from being cut off when the state without communication with the access point continues When,
Characterized by comprising. In the system, apparatus, or program in any one of Claims 1-8,
The identification address assigned to each ambulance computer is obtained by the medical institution computer from an ambulance identification address server device that can communicate with the medical institution computer. In the system, apparatus or program according to any one of claims 1 to 9,
The identification address of each ambulance computer is a global IP address,
The identification address of the medical institution computer is a local IP address. An ambulance communication method using a medical institution computer used in a medical institution and an ambulance computer installed in an ambulance,
The medical institution computer is
In order to identify each ambulance computer, the identification address assigned to each ambulance computer is recorded in the recording unit,
Using the identification address of each ambulance computer recorded in the recording unit, to each ambulance computer, send an address signal containing the identification address converted to a dynamic identification address,
Receive patient data sent from the ambulance computer,
The ambulance computer is
When transmitting patient data at the request of an ambulance computer, when receiving an address signal from a medical institution computer, as a reply to this, using the dynamic identification address of the medical institution computer included in the address signal, Send a transmission start recognition signal to the medical institution computer,
After transmitting the transmission start recognizable signal to the medical institution computer, using the dynamic identification address of the medical institution computer included in the address signal as a reply to the address signal from the medical institution computer, the medical institution An emergency communication method characterized by transmitting patient data to a computer. An emergency communication system comprising a medical institution computer used in a medical institution and an ambulance computer installed in an ambulance,
The medical institution computer is
A recording unit for recording an identification address assigned to each ambulance computer to identify each ambulance computer;
A communication unit for communicating with an ambulance computer;
Address signal transmitting means for transmitting an address signal including an identification address converted to a dynamic identification address to each ambulance computer via the communication unit using the identification address of each ambulance computer recorded in the recording unit; ,
When transmitting patient data at the request of a medical institution computer, the identification address of the target ambulance computer recorded in the recording unit is used to dynamically identify the target ambulance computer via the communication unit. A transmission start command means for transmitting a data transmission start command including an identification address converted into an address;
Data receiving means for receiving patient data transmitted from an ambulance computer via a communication unit,
The ambulance computer is
A communication unit for communicating with a medical institution computer;
As a reply to the address signal sent following the data transmission start command from the medical institution computer, using the dynamic identification address of the medical institution computer included in the address signal, the medical institution computer, Data transmission means for transmitting patient data via the communication unit;
An emergency communication system comprising: A recording unit for recording an identification address assigned to each ambulance computer to identify each ambulance computer;
A communication unit for communicating with an ambulance computer;
Address signal transmitting means for transmitting an address signal including an identification address converted to a dynamic identification address to each ambulance computer via the communication unit using the identification address of each ambulance computer recorded in the recording unit; ,
When transmitting patient data at the request of a medical institution computer, the identification address of the target ambulance computer recorded in the recording unit is used to dynamically identify the target ambulance computer via the communication unit. A transmission start command means for transmitting a data transmission start command including an identification address converted into an address;
Data receiving means for receiving patient data transmitted from an ambulance computer via a communication unit;
Medical institution computer equipped with. A communication unit for communicating with a medical institution computer;
As a reply to the address signal sent following the data transmission start command from the medical institution computer, using the dynamic identification address of the medical institution computer included in the address signal, the medical institution computer, Data transmission means for transmitting patient data via the communication unit;
Ambulance computer equipped with. A medical institution computer having a recording unit for recording an identification address assigned to each ambulance computer and a communication unit for communicating with the ambulance computer to identify each ambulance computer,
An address signal transmitting means for transmitting an address signal including an identification address converted into a dynamic identification address to each ambulance computer via the communication unit, using the identification address of each ambulance computer recorded in the recording unit;
When transmitting patient data at the request of a medical institution computer, the identification address of the target ambulance computer recorded in the recording unit is used to dynamically identify the target ambulance computer via the communication unit. A transmission start command means for transmitting a data transmission start command including an identification address converted into an address;
Data receiving means for receiving patient data transmitted from an ambulance computer via a communication unit,
Medical institution program to function as. An ambulance computer having a communication unit for communicating with a medical institution computer;
As a reply to the address signal sent following the data transmission start command from the medical institution computer, using the dynamic identification address of the medical institution computer included in the address signal, the medical institution computer, Data transmission means for transmitting patient data via the communication unit;
Ambulance program to function as. In the system, apparatus, or program in any one of Claims 12-16,
The ambulance computer receives an address signal from the medical institution computer and determines whether or not patient data can be transmitted to the medical institution computer as a reply to the address signal. And a status reply means for replying to the medical institution computer via a communication unit using a unique identification address. The system, apparatus or program according to any one of claims 12 to 17,
The ambulance computer is
Connection means for connecting to an Internet access point by the communication unit;
Dummy packet transmitting means for transmitting a dummy packet for establishing a connection every predetermined time by a communication unit in order to prevent the connection from being cut off when the state without communication with the access point continues When,
Characterized by comprising. The system, apparatus or program according to any one of claims 12-18.
The identification address assigned to each ambulance computer is obtained by the medical institution computer from an ambulance identification address server device that can communicate with the medical institution computer. In the system, apparatus, or program in any one of Claims 12-19,
The identification address of each ambulance computer is a global IP address,
The identification address of the medical institution computer is a local IP address. An ambulance communication method using a medical institution computer used in a medical institution and an ambulance computer installed in an ambulance,
The medical institution computer is
In order to identify each ambulance computer, the identification address assigned to each ambulance computer is recorded in the recording unit,
Using the identification address of each ambulance computer recorded in the recording unit, to each ambulance computer, send an address signal containing the identification address converted to a dynamic identification address,
When patient data is transmitted at the request of a medical institution computer, the identification address of the target ambulance computer recorded in the recording unit is used, and the identification is converted into a dynamic identification address for the target ambulance computer. Send data transmission start command including address,
Receive patient data sent from the ambulance computer,
The ambulance computer is
As a reply to the address signal sent following the data transmission start command from the medical institution computer, using the dynamic identification address of the medical institution computer included in the address signal, the medical institution computer, An emergency communication method characterized by transmitting patient data. An emergency communication system comprising a medical institution computer used in a medical institution and an ambulance computer installed in an ambulance,
The medical institution computer is
A recording unit for recording an identification address assigned to each ambulance computer to identify each ambulance computer;
A communication unit for communicating with an ambulance computer;
Data receiving means for receiving patient data transmitted from an ambulance computer via a communication unit,
The ambulance computer is
A communication unit for communicating with a medical institution computer;
Connection means for connecting to an Internet access point by the communication unit;
Dummy packet transmitting means for transmitting a dummy packet for establishing a connection every predetermined time by a communication unit in order to prevent the connection from being cut off when the state without communication with the access point continues When,
Data transmitting means for transmitting patient data to a medical institution computer via a communication unit;
An emergency communication system comprising: A communication unit for communicating with a medical institution computer;
Connection means for connecting to an Internet access point by the communication unit;
Dummy packet transmitting means for transmitting a dummy packet for establishing a connection every predetermined time by a communication unit in order to prevent the connection from being cut off when the state without communication with the access point continues When,
Data transmitting means for transmitting patient data to a medical institution computer via a communication unit;
Ambulance computer equipped with. An ambulance computer having a communication unit for communicating with a medical institution computer;
Connection means for connecting to an Internet access point by the communication unit,
Dummy packet transmitting means for transmitting a dummy packet for establishing a connection every predetermined time by a communication unit in order to prevent the connection from being cut off when the state without communication with the access point continues ,
Data transmitting means for transmitting patient data to a medical institution computer via a communication unit;
Ambulance program to function as. The ambulance communication system of claim 22,
The medical institution computer uses an identification address of each ambulance computer recorded in the recording unit, and transmits an address signal including an identification address converted into a dynamic identification address to each ambulance computer via the communication unit. Address signal transmitting means
An ambulance communication system comprising: In the system, computer, or program in any one of Claims 22-25,
The data transmission means transmits patient data to the medical institution computer using a dynamic identification address of the medical institution computer included in the address signal as a reply to the address signal from the medical institution computer. It is characterized by. An ambulance communication method using a medical institution computer used in a medical institution and an ambulance computer installed in an ambulance,
The medical institution computer is
In order to identify each ambulance computer, the identification address assigned to each ambulance computer is recorded in the recording unit,
Receive patient data sent from the ambulance computer,
The ambulance computer is
Connect to an Internet access point,
When a state without communication with the access point continues, in order to prevent the connection from being cut off, send a dummy packet for connection establishment every predetermined time,
An emergency communication method characterized by transmitting patient data to a medical institution computer.

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