Message communicating system

[Detailed Description of the Invention]

[Field of the Invention] The message communication method which the present invention requires for a message communication method, especially can communicate a positive message in vehicles etc. (it This places.) [Background of the Invention] With the transit system generally according to a track etc., they are a condition report of a track, and the Birthing directions from a delivery center, In addition, it is necessary to answer messages, such as vehicle information, between a track and an allocation-of-cars center, and communication of the message is performed between the radio station of the roadside (or embedding on the street), the non-internal division of mount of a passenger car, a track, etc., and ,. Drawing 2 is a system chart showing the message communication of vehicles, especially the schematic structure of the system for transport business. As shown in the figure, they are mounted radio station 1a and f! - 1 The radio station 21 This message of the roadside is sent from b, and it is the message (after being transmitted to exchange station 4 through Signal line 3, told to allocation-of-cars center 5a or allocation-of-cars center 5b.). A message is conversely transmitted to mounted radio station 18 or 1b from allocation-of-cars center 5a or 5b. [The problem of a background art] However, it is although the transmitting side carries out number-of-times repetition sending out of the same message of fixed in the starting message communication method in order to raise communicative reliability, there may have been a problem that positive message communication could not be performed in the case where vehicles carry out a parallel run, and learn by experience one, and perform high speed operation, or a route change is made [Objects of the Invention] Then, the present invention removes the above-mentioned fault and an object of the present invention is to provide the message communication method which can perform message communication with high reliability. [Summary of the Invention] In the present invention, a message is delivered and received between a fixed-wireless-access office and an ambulant radio station, A receiving side returns a reply signal, and the transmitting side repeats and sends out the same message, and when Acceptance does not take the above-mentioned reply signal, when the number of times of the above-mentioned repetition sending out makes the information of portion [ which became more than fixed ], fixed-wireless-access office, or ambulant radio station zeta Roughly, and a slowdown perform, it achieves the above-mentioned object. [Example] The example of the present invention is described concretely and in detail based on Drawing 1 below. Drawing 1 is a control flow figure of the message communication method concerning this example (al shows the message communication process at the time, and (b) usually shows the message communication process at the time of non transmission.), At the time of usual [ which is shown in Drawing 1 (a) ], a driver inputs a message to mounted radio station 1a or 1b (following 1a is taken for an example) with a key (KEY), a sound, etc. (Step 81). The message inputted in mounted radio station 1a is sent out through a radio circuit to radio station 2 of the roadside (Step 82). radio station 2 of the roadside -- a message -- receiving (Step s3) -- mounted radio station 1a -- a reply signal -- sending out (Step 84) -- an exchange station 4 Hemz sage is transmitted (Step S5). If the reply signal with which radio station 1ai Will return of the mount was carried out is received, sending out of a message will be stopped and message communication will be completed (Step s6). Next, the time of the non transmission in Drawing 1 (b) is explained. If a driver inputs a message to mounted radio station 1a (Step 87), the message will be sent out through a radio circuit to radio station 2 of the roadside (Step 88). However, when the state of electric wave propagation is bad and cannot receive by a parallel run of vehicles, and high speed operation in radio station 2 of the roadside (Step S9), as shown in the figure (a), radio station 2 of the roadside does not send out a reply signal. For this reason, sending out of a message is again performed to radio station 2 of the roadside from mounted radio station 1a (Step 510). however, in radio station 2 of the roadside, since reception is impossible (Step 511), sending out of a message carries out -- having (Step 512) -- reception of radio station 2 of the roadside is impossible (Step 513). Mounted radio station 1alcl'! A means to count the number of times of message sending out is established, The number of times of message sending out is counted by the means, To step 814 and when [ even if it sends out a message 3 times as mentioned above, ] there is no return of a reply signal, it is in mounted radio station 1a eight, and information of a "slowdown" (the meaning of a "stop" is included) is performed (Step 815). A driver checks this and stops it to a low-speed run or the place near radio station 2 of the roadside. Radio station 2 of the roadside can receive the message (Step 816) repeatedly sent out by this (Step 517), usually, the time -- the same -- radio station 2 of the roadside -- mounted radio station 1a -- a reply signal -- sending out (Step 518) -- a message is transmitted to exchange station 4 (Step 519). If Acceptance takes the reply signal from radio station 2 of the roadside, mounted radio station 1a will stop the information of a "slowdown" while completing message communication (Step 520). Although mounted radio station 1a was made into the transmitting side and radio station 2 of the roadside was made into the receiving side in the above-mentioned example, even if this To the receiving side the transmitting side and mounted radio station 1a for radio station 2 of the roadside conversely, it can apply the present invention. In this case, from radio station 1a of reply signal mount, even if sent out repeatedly more than fixed (for example, 3 times), the Acceptance should just report a "slowdown" with the identification number of vehicles using the electrical scoreboard and others of the roadside, when it does not take. although the number of times of message manipulation return was made into 3 times in the above-mentioned example, of course, it does not restrict to this -- deep -- it comes out. [Effect of the Invention] As explained above, it is un-inventing (until it makes a reply signal return from the If it is transmitting side and the repetition sending-out talkative of a message becomes by a receiving side more than fixed (a reliable message's can be communicated by performing "slowdown" information when This and the above-mentioned reply signal are not received.)).

[Brief Description of the Drawings]

The control flow figure of the message communication method which requires Drawing 1 for one example of the present invention, and Drawing 2 are system charts showing the schematic structure of the message communication of vehicles.