CN2442878Y

CN2442878Y - On-vehicle digital information apparatus

Info

Publication number: CN2442878Y
Application number: CN00218682U
Authority: CN
Inventors: 陆鸿海; 张加珍
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-08-03
Filing date: 2000-08-03
Publication date: 2001-08-15
Anticipated expiration: 2010-08-03

Abstract

The utility model relates to an on-vehicle digital information apparatus which comprises a first storage storing stop report information, a keyboard inputting instructions, a voice converter converting the stop report information into voice signals, a power amplifier amplifying the voice signals, a loudspeaker outputting the voice signals, a first CPU controlling the on-vehicle digital information apparatus and a storage card detachably connected to the on-vehicle digital information apparatus and providing the stop report information or modifying contents for the first storage. Due to the adoption of the storage card as an information source for reporting, displaying, etc. of the information apparatus, contents of stop report, display, etc. can be modified at any time, so that vehicles are conveniently temporarily called and routes can be conveniently changed.

Description

Vehicle-mounted digital code information device

The utility model relates to vehicle-mounted digital code information device, relates in particular to the vehicle-mounted digital code information device of a kind of plug-in card type.

Existing vehicle-mounted digital code information device as shown in Figure 1, it comprises information device body A and read-out B.Information device body A is arranged on booking-clerk or the operating seat, and read-out B is arranged in the car, on headstock, the tailstock or the car waist position.Wherein, information device body A comprises first central processing unit (CPU) 1, be connected respectively to keyboard 2, telltale 3, speech convertor 4,485 interfaces 6 and the first memory (EPROM) 12 of CPU1, and the power amplifier 5 and the loud speaker Y that are connected to speech convertor 4.Read-out B comprises second central processing unit (CPU) 7 and is connected respectively to 485 interfaces 6 of CPU7, second memory (EPROM) 8, the 3rd memory device (SRAM) 9 and light-emitting diode (LED) telltale 10.CPU1 reads the content of first memory 12 storages according to the order of keyboard 2, and calls out the stops by loud speaker Y and telltale 3 respectively.Read-out B is connected to information device body A by 485 interfaces 6, the information of calling out the stops that CPU7 receives from information device body A via 486 interfaces 6, this is called out the stops information storage in the 3rd memory device 9, and access corresponding word content in information such as light-emitting diode display 10 demonstration names of station from the second memory 8 of storage standards character library and displaying contents form.

Yet, the shortcoming of existing vehicle-mounted digital code information device is that its content of calling out the stops immobilizes, when public transit vehicle or tourist coach need call another route service, then must transposing first memory 12 even second memory 8, call to vehicle and to bring very big inconvenience.

The purpose of this utility model is to overcome the above-mentioned defective of prior art, and a kind of vehicle-mounted digital code information device that uses flexibly, is convenient to revise at any time the content of calling out the stops is provided.

Another purpose of the present utility model is to provide a kind of vehicle-mounted digital code information device of serving many routes.

According to vehicle-mounted digital code information device of the present utility model, it comprises: in order to the call out the stops first memory of information of storage, keyboard in order to input instruction, in order to the information translation of calling out the stops that will store is the speech convertor of voice signal, in order to power amplifier and the loud speaker that voice signal is amplified and exports, in order to controlling first central processing unit of vehicle-mounted digital code information device operation, and can be connected to described vehicle-mounted digital code information device and in order to the information of calling out the stops to be provided to described first memory or to revise the storage card of content with plugging.

According to vehicle-mounted digital code information device of the present utility model, owing to adopt the call out the stops information generator of storage card as information device, so the content of calling out the stops can be revised at any time, what greatly facilitate vehicle calls change with route temporarily.In addition, information device adopts high-capacity first memory, is convenient to calling out the stops of several routes is stored in the information device during information of same, and information device can be called out the stops according to the running route of revising at any time.

Below with reference to accompanying drawing vehicle-mounted digital code information device of the present utility model is described in further detail, identical reference number is represented same or analogous parts in the accompanying drawing.

Fig. 1 is the diagram of block of the vehicle-mounted digital code information device of expression prior art.

Fig. 2 is the diagram of block of expression vehicle-mounted digital code information device of the present utility model.

Fig. 3 is the scheme drawing of Memory Allocation of a storage card of expression vehicle-mounted digital code information device of the present utility model.

Fig. 4 is the scheme drawing of Memory Allocation of the first memory of expression vehicle-mounted digital code information device of the present utility model.

Fig. 5 is the detailed scheme circuit that parts such as storage card and first memory are connected with CPU in the expression vehicle-mounted digital code information device of the present utility model shown in Figure 2.

Fig. 6 is the scheme drawing of the Long-distance Control service system of expression making of storage card or modification.

Referring to Fig. 2, the key distinction of the vehicle-mounted digital code information device of vehicle-mounted digital code information device of the present utility model and prior art shown in Figure 1 is, by storage card, CF plug-in card (COMPACT FLASH CARD) 20 source data storage for example as information device, it can be connected to CPU1 with plugging, copy source data to first memory 12 via CPU1.Because the capacity of CF card is bigger, can directly be connected again with PC, PC can be used as it hard disk and read and write, so the making of CF card and modification are all very convenient.

Fig. 3 shows the Memory Allocation of CF plug-in card 20, has wherein both contained the content for information device body A broadcast, contains the content displayed for read-out B again.

Fig. 4 shows the Memory Allocation of first memory 12, and in the utility model, first memory 12 for example adopts the high-capacity erasable FLASH memory device that removes, owing to its capacity is big, so can store the information of many routes.

Fig. 5 is the detailed scheme circuit that CF plug-in card 20 and first memory 12 parts such as grade are connected with CPU1 in the expression vehicle-mounted digital code information device of the present utility model shown in Figure 2.As shown in the figure, CF plug-in card 20 for example adopts the CF card of the 8MB of SST48CF064 type, FPDP D0 to D7 and CPU1 that its FPDP DO to D7 is connected respectively to first memory 12 (for example adopting the FLASH memory device of 32 megabits of DA28F320J5 type) (for example adopt the micro controller system of 89C51 type, it has sheet internal program district, need not the Add-In chip) two-way I/O port P0.0 to P0.7.The address port A0 to A7 of CF plug-in card 20 links to each other with the address port A0 to A7 of first memory 21, and together is connected to a low order address latch (for example using 74LS373 type latch) V4.The address port A8 to A15 of first memory 12 is connected to a meta address latch (for example using 74LS273 type latch) V5, and its address port A16 to A21 is connected to a high address latch (for example using 74LS273 type latch) V6.The two-way I/O port P2.5 to P2.7 of CPU1 is connected respectively to the input end of an address decoder (for example using 74LS138 type decoder) V7.Like this, the chip select address of CF plug-in card 20 is 0000H, and the chip select address of first memory 12 is 2000H, and the chip select address of meta address latch V5 is 4000H, and the chip select address of high address latch V6 is 6000H.

When vehicle-mounted digital code information device uses, select to call out the stops route earlier, order CPU1 the content of storage on the CF plug-in card 20 to be copied on the relevant position of first memory 12 then and substitute original route content by the operation of keyboard 2.In the vehicle ' way, chaufeur is pressed the specified button of lower keyboard 2, and CPU1 promptly accesses the information of calling out the stops of respective site from first memory 12, play the information of calling out the stops via speech convertor 4 and power amplifier 5 on loud speaker Y.Because the content of storage copies on the first memory 12 on the CF plug-in card 20, so CF plug-in card 20 can take off from information device body A behind copy, need not every station information device and joins a plug-in card, a bus routes only need be joined several plug-in cards and be got final product.

The information of calling out the stops that information device body A produces can also be sent to read-out B by standard 485 interfaces 6.Compare with prior art shown in Figure 1, set up one the 4th memory device 23 on the read-out B of vehicle-mounted digital code information device of the present utility model, and be connected to CPU7.The 4th memory device 23 for example adopts Serial E ²ROM, it is simple in structure, low price is not afraid of power down again.After CPU 7 receives the information of calling out the stops from information device body A, at first it is deposited in the 4th memory device 23, then information is sent on the 3rd memory device 9 and shows by light-emitting diode display 10 again.

Needs for the protection that conforms are provided with a clock circuit chip 22 on information device body A, be connected to CPU1.Is that the sound of calling out the stops is provided with different volumes by this clock circuit 22 in the different periods, and different display brightness is set for read-out B.Promptly be provided with gentlier with the sound of will calling out the stops night in the morning, and be provided with the display brightness of read-out B more secretly.

Because the content on the CF plug-in card 20 can write or revise by PC, and PC has stronger editting function, so the making of CF plug-in card 20 and modification are all very convenient.Fig. 6 illustrates the Long-distance Control service system of the making or the modification of CF plug-in card 20.The user makes according to the operating needs of public transit vehicle or tourist vehicle and shows that the road is single, and the road single-pass is crossed e-mail deliver to producer.Producer receives that the road singly programmes, revises, debugs qualified back and produce destination file, and this destination file is passed the user back by e-mail again.The user is written on the CF plug-in card 20 by PC after receiving this destination file.

The above only is preferred embodiment of the present utility model.According to above-mentioned design of the present utility model, those skilled in the art also can make various modifications or conversion to this, and for example, above-mentioned plug-in card 20 also can adopt the similar conversion of SM card (SMART MEDIA CARD) and revise and all belong to scope of the present utility model.

Claims

1. vehicle-mounted digital code information device, comprise: in order to the call out the stops first memory of information of storage, keyboard in order to input instruction, in order to the information translation of calling out the stops that will store is the speech convertor of voice signal, in order to power amplifier and the loud speaker that voice signal is amplified and exports, and, it is characterized in that described vehicle-mounted digital code information device also comprises to be connected to described vehicle-mounted digital code information device and in order to the information of calling out the stops to be provided to described first memory or to revise the storage card of content in order to control first central processing unit of vehicle-mounted digital code information device operation with plugging.

2. vehicle-mounted digital code information device as claimed in claim 1 is characterized in that also comprising in order to show the telltale of the described information of calling out the stops.

3. vehicle-mounted digital code information device as claimed in claim 1 or 2 is characterized in that also comprising the communication interface that is connected to described first central processing unit.

4. vehicle-mounted digital code information device as claimed in claim 3 is characterized in that also comprising the read-out that is connected to first central processing unit via described communication interface.

5. vehicle-mounted digital code information device as claimed in claim 4, it is characterized in that, described read-out comprises the second memory in order to the storage standards character library, in order to call out the stops the 3rd memory device of information of storage, in order to the call out the stops light-emitting diode display of information and of demonstration in order to control second central processing unit of described read-out operation.

6. vehicle-mounted digital code information device as claimed in claim 5 is characterized in that, described read-out also comprises in order to call out the stops the 4th memory device of information of persistent storage.

7. vehicle-mounted digital code information device as claimed in claim 1 or 2 is characterized in that described first memory is the FLASH memory device.

8. vehicle-mounted digital code information device as claimed in claim 6 is characterized in that described second memory is an EPROM, and described the 3rd memory device is a static memory, and described the 4th memory device is an Electrically Erasable Read Only Memory.

9. vehicle-mounted digital code information device as claimed in claim 4 is characterized in that also comprising in order to control the clock circuit of voice signal size and/or brightness of display screen at times.

10. as claim 1 or 2 above-mentioned vehicle-mounted digital code information devices, it is characterized in that described storage card is CF plug-in card or SM plug-in card.