JPH02293963A - Vital information processor - Google Patents

Abstract

PURPOSE:To improve the efficiency by distributing and storing the processing procedure to be processed by a microprocessor unit at every processing classification of vital information in a storage means, and executing a connection control between each constitution in accordance with a processing state of each microprocessor unit by a switching means. CONSTITUTION:In each CPU 1, 5, a program to be executed by the own CPU is stored, respectively, and only when necessity for using an I/O bus 13 by each CPU is generated, a bus to which the own CPU is connected and the I/O bus 13 are connected by giving an instruction to a bus arbitration controller 9. The bus arbitration controller 9 can also be constituted so that in the case I/O bus connection requests from each connected CPU compete with each other, the CPU connected at present takes precedence over the other CPU, and as the case may be, a use request from the other CPU is informed to the CPU which is being used by an interrupt processing or a status, etc. In such a way, an efficient vital information processor can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a biological information processing device comprising at least two microprocessor units, each having its own program memory.

[Prior Art] In recent years, biological information processing devices that measure and display biological information such as electrocardiogram waveforms, or analyze biological information to facilitate diagnosis have become widespread. A microprocessor (CPU) is used in these devices, and the CPU
We record and analyze biological information such as electrocardiogram waveforms measured using this system to assist in diagnosis. Among these devices, devices that use two or more CPUs and are capable of multi-functionality and increased speed are emerging. In these conventional biological information processing devices that use two or more CPUs, the peripheral devices and processes to be controlled by each CPU are fixedly determined in advance, and the predetermined control is performed in any case. there were.

[Problem to be solved by the invention] However, the amount of information to be processed by each CPU and peripheral device varies greatly depending on the type of biological information processing, etc.
While there are CPUs that perform a large amount of processing, there are also CPUs that perform very little processing, resulting in extremely poor efficiency.

If it is absolutely necessary to transfer the processing of one CPU to another CPU, all CPUs should be equipped with a ROM that stores all processing programs, and one CPU can temporarily transfer instructions to the commonly available RAM. the other CPU sends R
It was necessary to perform pre-transfer processing by reading this instruction from AM, and then perform the transferred processing.

[Means for Solving the Problems] The present invention has been made for the purpose of solving the above-mentioned problems, and includes the following configuration as a means for solving the above-mentioned problems. That is, at least two microprocessor units, a storage means storing processing procedures to be executed by the microprocessor for each microprocessor unit;
A peripheral device that can be commonly accessed by each microprocessor unit, a system bus for connecting the peripheral device and each microprocessor unit, and a switching means for switching and connecting the system bus and each configuration. The storage means stores processing procedures to be processed by the microprocessor unit for each type of processing of biological information, and the switching means controls the connection between each component in accordance with the processing state of each microprocessor unit. control.

[Operation] With the above configuration, the processing mode of each microprocessor unit can be optimized for each type of processing of biological information, and the processing is optimally distributed among each microprocessor unit, resulting in extremely efficient processing. A biological information processing device can be provided.

[Example] Hereinafter, an example according to the present invention will be described in detail with reference to the drawings.

The following describes an example of an electrocardiogram analyzer that collects electrocardiogram waveforms as biological information and analyzes the electrocardiogram waveforms. However, the present invention is not limited to an electrocardiogram analysis apparatus that processes electrocardiogram waveforms, and can of course be applied to any information processing apparatus as long as it is biological information.

FIG. 1 is a block diagram of an electrocardiogram analyzer according to an embodiment of the present invention. In the figure, 1 is an ACPU that controls this embodiment together with a BCPU 5 according to a program stored in an AROM 2, and 2 is the above-mentioned ACPU. 1 is an AROM for storing programs, etc.; 3 is an ARAM for temporarily storing processing progress of the ACPU 1; 4 is an A status display section for displaying the status of the ACPU 1;
Used during maintenance in step 1. 5 is the ACP according to the program stored in BROM6.
A BCPU that controls the present embodiment together with the UI, 6 a BROM that stores programs etc. for the BCPU 5 described above;
is BRA for temporarily storing processing progress of BCPU5, etc.
M, 8 is a B status display section for displaying the status of the BCPU 5, and is mainly used during maintenance of the BCPU 5.

In addition, 9 is the A bus 11 and BCP connected to ACPU1.
U5 connected B bus 12 and other peripherals and DMA
a bus arbitration controller 10 that controls the connection of the I/O bus 13 connected to the controller 1o;
uses direct memory access (D
21 is a display interface for controlling the display unit 200;
23 is a sound generator that generates an acoustic signal to be output from the speaker 120; 24 is a slave monitor interface that controls the interface with the slave monitor 110; and 25 is a slave monitor interface that controls the interface with the slave monitor 110. A function setting switch section for setting various functions in the example device; 26 is an information card interface that controls the interface with the information card reader/recorder 150; 27 is a thermal printer 300
a printer interface 28 for controlling the host 35;
This is a line interface that controls the interface with other information processing devices such as 0, etc., and in this embodiment, it is configured as a serial interface compliant with the RS232C standard.

29 is a LAN interface that controls the interface with the LAN; 30 is an external input interface that controls the interface with the guidance code 190 and converts the biological information collected as an analog signal from the guidance code 190 into a digital signal; 31 is a timer circuit; 32 is a status display unit that displays the operating status of this embodiment, and 40 is a memory that stores collected data, processed data, and the like.

Note that 28a is a connection between the host 350 and the line interface 28.
A line connection connector 30a is an input box for connecting the guidance cord 190 and the guidance cord interface 30.

Furthermore, 110 is a slave monitor that can be optionally connected to the device of this embodiment, 120 is a subica, 150 is an information card league recorder for reading the memory contents of the information card 160 and writing processing contents, etc., and 160 is a measured electrocardiogram. An information card (I
C card). Further, 190 is a guide cord for collecting biological information such as electrocardiogram information and inputting it into the device of this embodiment, and the tip thereof is provided with an electrode portion for detecting biological information (electrocardiogram waveform). Reference numeral 200 denotes a display unit, which in this embodiment is equipped with a CRT display device. 250 is the operation panel,
300 is a thermal recorder that prints out electrocardiogram waveform records and analysis results, and 350 is a host computer connectable to the apparatus of this embodiment. Also, 400 is a power supply board,
500 is a LAN to which the device of this embodiment can be connected.

The operation of the bus arbitration controller 9 of this embodiment having the above configuration will be explained.

The bus arbitration controller 9 includes an A bus 11, a B bus 12, an I bus, and an I bus in response to the processing being executed by each CPU.
/O bus 13 performs connection control between each bus. Table 1 shows the connection status and the processing status of each CPU. Note that DMAC in the table indicates an example of the processing of the DMA controller 10. In this embodiment, each CPUI 5 stores a program to be executed by its own CPU, and each CPU performs I/O. It is only necessary to instruct the bus arbitration controller 9 to connect the bus connected to its own CPU and the I/O bus 13 only when it is necessary to use the bus 13. When I/O bus connection requests from each connected CPU conflict, the bus arbitration controller 9
The currently connected CPU may be prioritized, and depending on the case, the currently used CPU may be notified of a request for use from the other CPU through an interrupt process or status.

Next, with reference to the process diagram shown in FIG. 3, we will explain how to allocate work in each CPU and control writing to the ROM according to the processing form and biological information processing content of the device of this embodiment in this embodiment. This will be explained below.

The CPU of this embodiment differs from conventional CPUs, etc. in that each CPU
U can directly control all connected I/O devices, etc. For this reason, when making the device of this embodiment, first,
In step S1, processing modes that can be processed by the apparatus of this embodiment are identified. This processing form determines what kind of device the device of this embodiment can be used as. In this embodiment, depending on the settings, A central monitor device that has the function of controlling the device and displaying data collected by other devices ■ A biological information collection/monitoring device for bedside installation ■ A device with various functions such as a biological information gathering/monitoring device as a telemeter system It can be operated as The device usually has all of the above functions, and selects the device function according to which processing mode the device is set to (setting by a switch or the like or manually by keys, etc.).

Subsequently, in step S2, the amount of work is calculated for each process to be performed on biological information. Then, it is determined which of the ACPU 1 and the BCPU 5 should execute the workload calculated in step S3. Then, in step S3, it is checked whether or not the distribution of all processes has been completed, and if there are still processes to be distributed, the process returns to step S2 and the distribution process is continued.

When the distribution of all processes is completed, the process proceeds to step S5, where the storage area of the process program distributed to each CPU in the ROM is determined, and the switching control of the bus arbitration control 9 is determined. Subsequently, the program determined in step S6 is written into the ROM 3.7, and the process is terminated.

Thereafter, biological information is processed according to the program stored in this way.

As described above, in the device of this embodiment, the programs to be executed are not stored in the AROM2 and BROM6, which are the program areas of each ACPU1 and BCPU5 (7), but one program is stored in the common ROM. It is not stored as .

In an apparatus such as the one described in this embodiment, in which the object to be processed, the output of the processing result, etc. can be determined to some extent in advance, and the apparatus needs to be simple and highly reliable, each C
It is only necessary to create a program to be executed so that the work is distributed optimally among the PUs, and there is no need to create a complicated management program that determines the work of each CPU each time such processing is executed. Therefore, program design becomes easy and a highly efficient biological information processing device can be achieved. Next, when operating the apparatus of this embodiment in which the processing programs and the like are stored in this manner, first, when installing the apparatus, it is set which of the above-mentioned apparatuses (1) to (4) is to be used.

Then, the desired biological information processing program is executed. At this time, the processing assignments for each CPUI, 5 are determined according to the processing, and from then on, each CPU instructs the bus arbitration controller 9 to control the bus occupancy according to this processing assignment, so that both CPUs 1, 5 can be used in the most efficient manner. It can be used for For example, even when controlling connected I/O, the time that the CPU actually occupies the bus is extremely short, and it takes the CPU processing time for connected I/O to input and output processing data. It is very small compared to Therefore, even when two CPUs are simultaneously executing different processes in parallel, there is almost no competition when occupying the bus.

If a conflict occurs, priority may be given to each CPU or connected I/O in the same manner as interrupt control.

Also, instead of using the CPU as a processing unit that occupies the bus,
If the bus occupier is switched at each processing program break, the bus arbitration control 9
Control is also very simple. In this case, one CPU occupies the I/O bus until a specific process is completed, and when a switching request is made from the other CPU, the bus is switched when the process being executed has finished. If it is controlled, it can be controlled very easily.

Even in these cases, the DMA controller 10 performs DMA control according to the control of each CPU;
Since the idle time between the processing times of the CPU is used, the CPU I/
There is almost no obstacle to data input/output with O.

For example, ACPU 1 has external input interface 30
, the measurement data from the test subject is taken in via the guidance code 190, etc., and after predetermined analysis processing is performed, the results are controlled to be displayed and output on the display section 200.

On the other hand, the BCPU 5 outputs the measurement results processed by the ACPUI to the LAN 500, and also outputs the measurement results processed by the ACPUI to the LAN 500.
It controls printing out the UI analysis results etc. from the thermal printer 300 and writing them to the information card 160.

Note that data transfer control in these controls is based on DMA
It is desirable to perform this using the controller 10 (in this case, the CPU only stores the transferred data in the memory 40, and the DMA controller 10 then performs the actual data transfer between each I/O). .

As explained above, according to this embodiment, there are no restrictions on I/O etc. that can be controlled by each microprocessor unit, and the processing share to be handled by each CPU is determined for each type of biological information processing to be executed. , it is possible to allocate processing in the most efficient manner. In this case as well, it is easy to create a processing program, and the program storage area can be kept short, with almost no overlap between the CPUs. In this way, a highly efficient biological information processing device can be provided.

[Effects of the Invention] As explained above, according to the present invention, the processing form of each microprocessor unit can be optimized for each type of processing of biological information, and the optimal processing distribution in each microprocessor unit can be achieved. A highly efficient biological information processing device can be provided.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a biological information processing device according to an embodiment of the present invention, and FIG. 2 is a diagram showing processing and program distribution control of the device of this embodiment. In the figure, 1, 5... CPU, 2.6... ROM, 3.
7...RAM, 4, 8.32...Status display section, 9...Bus arbitration controller, 10
...DMA controller, 21... Display controller, 22... Operation panel interface, 2
4...Slave monitor interface, 26...Information card interface, 27...Printer interface, 28...Line interface, 29...L
AN interface, 30... External input interface, 40... Memory, 110... Slave monitor,
150... Information card league recorder, 160...
・Information card, 190... Guidance code, 200...
Display section, 250... operation panel. Patent applicant: Fukuda Denshi Co., Ltd.

Claims (1)

[Claims] (1) at least two microprocessor units; storage means for storing processing procedures to be executed by the microprocessor for each microprocessor unit;
A peripheral device that can be commonly accessed by each microprocessor unit, a system bus for connecting the peripheral device and each microprocessor unit, and a switching means for switching and connecting the system bus and each configuration. The storage means stores processing procedures to be processed by the microprocessor unit for each type of processing of biological information, and the switching means controls the connection between each component in accordance with the processing state of each microprocessor unit. A biological information processing device characterized by performing control.