| 摘要 |
<p>PROBLEM TO BE SOLVED: To make it simply connectible in the case where abnormality happenes in a material handling vehicle or its driver by setting up an emergency switch, transmuting a message to a host computer, in a radio LAN terminal mounted on the material handling vehicle. SOLUTION: In the case of such a state where a deadman brake 7 is not released as long as for a specified period of time, or in the case of pushing an emergency switch set up in a ratio LAN terminal 6, it is smade so as to transmit a signal to a host computer set up in the office. When such a state that an operator of a reach type fork-lift truck 1 will not operate the deadman brake 7 for hours, namely, if such a state that a brake is kept applied intact is continued, it is so judged that abnormality occurs in a vehicle, transmitting it to the host computer set up in the office. In addition, even in the case of having pushed an emergency button of a key panel of the ratio LAN terminal 6, it is so structured as to be transmitted to the host computer set up in the office likewise.</p> |
