Studies on the development of telemedicine network system in the disaster emergency medical treatment

我们尝试开发了日本第一个无线传输系统，使用400 MHz带宽的电波来观察救护车内的外观。虽然现时有很多类似的设备，但安装在救护车上是不可能操作的。由于这些系统工作在高频段，而电波功率受到国内法律的限制，为了使这种系统能够实际运行，电波功率应该很大。因此，有必要基本上降低频带区域。然而，当频带区域降低时，放置在电波上的信息量将减少，因此，在救护车中传输外观变得非常困难。然后，我们尝试了制造高功率和确保远摄信息量的冲突问题，并取得了结果。首先，该系统的优点是，运行成本是不必要的，只是在初始成本。在许多情况下，通信费用成为一个问题，因为它是由预算在一年中运行。在该系统中，除了患者的生命数据之外，我们还可以免费了解救护车上的外观。其次，即使是大面积灾难等移动的载波通信基础设施不起作用的时候，该系统由于采用了原有的无线基础设施，不受影响，可作为灾害应急医疗的远程医疗网络系统。

We tried the development of the first wireless transmission system in Japan that used the electric wave of 400MHz bandwidth to observe the appearance in the ambulance. Though a lot of similar equipment exist now, it is not possible to operate it by installing it in the ambulance. Because these operate in a high frequency band region, and the electric wave power is limited by the domestic law.For practicable operation of such a system, the electric wave power should be large. Therefore, it is necessary to lower the frequency band region basically. However, the volume of information put on the electric wave will decrease when the frequency band region is lowered, consequentially, transmitting the appearance in the ambulance becomes very difficult. Then, we tried to the conflicting problem of making to high power and securing to the telephotography volume of information, and achieved the result.First, the advantage of this system is that the running cost is unnecessary only in an initial cost. In many cases, the communication charge becomes a problem because it is operated by the budget during year. In this system, we can know the appearance in the ambulance in addition to patient's vital data free of charge.Secondarily, even if it is time when it doesn't function the communication infrastructure of the mobile carrier like the large area disaster etc., this system is unaffected because an original wireless infrastructure is used.Result, this system is useful as the telemedicine network system in the disaster emergency medical treatment.