JPS647327B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a postal weighing system including a plurality of weighing sections.

There are various types of mail, from regular mail to parcel mail, but regular mail is usually in a sealed format and weighs between several tens of grams to several hundred grams. Most of them weigh from several hundred grams to several kilograms. There is also the problem that regular mail cannot be weighed correctly unless the minimum scale value is set to 1 gram or less. Therefore, when considering weighing everything from regular mail to parcel mail with one scale, a scale with a minimum scale value of 0.5 grams and a weighing capacity of about 10 kilograms is required, which would require a scale with a resolution of 20,000 times smaller. 1 or more, and it is virtually impossible to use such a scale as a postal scale.

This invention was made in view of these points, and by providing a plurality of weighing units with different weighing amounts and minimum scales, it is possible to reliably weigh various types of mail, and it is possible to obtain benefits by weighing. By displaying weight values and postage charges on a common display, the display space can be reduced and costs can be reduced, and it is also possible to reliably inform which weighing unit the data is coming from. The purpose is to provide a weighing system.

Embodiments of the present invention will be described below with reference to the drawings.

In Figure 1, 1 is for example a usage range of 20g to 1
a first weighing section with a minimum scale of 0.5 g in Kg;
2 is a second weighing unit whose usage range is, for example, 200g to 10kg and the minimum scale is set to 5g; 3 is a display device;
These are connected by cords 4 and 5. A power cord 6 is also connected to the second weighing section 2. The first weighing section 1 has a weighing pan 8 on the top of the housing 7.
The second scale section 2 has a weighing pan 10 placed on the rear upper part of the housing 9, and an operating section 11 provided on the front upper part.

As shown in FIG. 2, the display device 3 has a segment type weight display 31 and a charge display 3 on its front surface.
2 and an error status indicator lamp 33a.
A business status indicator lamp 33 is provided to indicate various business statuses including express delivery, overweight, underweight, simple registered mail, and extra charge. Further, the display device 3 is provided with a first scale section indicator lamp 34 and a second scale section indicator lamp 35 on the front thereof, and lamps 36, 37 for indicating the zero point of both scale sections 1, 2.
has been established. Further, the display device 3 is provided with, for example, 12 charge indicating lamps 38 on its front surface in correspondence with the weights. On both sides of the rate indication lamp 38, domestic regular postage is divided into ``City special mail - standard size'', ``City special mail - non-standard size'', ``standard size mail'', and ``non-standard size mail'', and further corresponds to the weight. In addition to displaying the domestic parcel postage in "Zone 1 -
The area is divided into ``City'', ``First Zone - Others'', ``Second Zone'', and ``Third Zone'', and is further displayed in correspondence with weight, and book parcel charges are also displayed in correspondence with weight. Further, on the front of the display device 3, simple registered mail charges and express delivery charges (regular mail and parcel mail) are displayed. As shown in FIG. 3, the operation unit 11 includes a key for specifying the content of domestic regular mail, which is comprised of a fixed key 11a, a non-standard key 11b, a local fixed key 11c, and a non-local key 11d. ”
Key 11e, 1st zone "Others" key 11f, 2nd zone key 11g, 3rd zone key 11h, Domestic parcel post zone content specification key, Aviation A key 1
1i, aviation mail contents designation key consisting of aviation B key 11j, aviation C key 11k, aviation D key 11l, other book keys 11m, *key 11n,
SET key 11p, premium key 11q, express delivery key 1
1r, a simple registered mail key 11s, a cancellation key 11t, a zero return key 11u, a repeat key 11v, a certificate stamp issue key 11w, and the like. In addition, the operation section 1
1 displays a map showing the mailing zone divisions of each region. Among the various keys 11a to 11w provided on the operation section 11, the remaining keys except for the cancel key 11t, zero return key 11u, and repeat key 11v are self-illuminating keys.

FIG. 4 is a block diagram showing the circuit configuration, where 12 is a CPU (central processing unit) with built-in arithmetic circuits, instruction decoders, memory control circuits, etc., and 13 is a block diagram with memory, etc. necessary for processing by the CPU 12. A RAM (Random Access Memory) 14 is a ROM (Read Only Memory) in which programs for various processes executed by the CPU 12 are stored. Reference numeral 15 denotes a first weighing circuit section built in the first weighing section 1, and reference numeral 16 denotes a second weighing circuit section built in the second weighing section 2. Both circuit sections, a load cell, a signal amplifier, an A/ D (analog/digital)
It is composed of a conversion circuit and the like. 17 is a display control circuit that controls the display of the weight display 31 and the charge display 32, and 18 is a key matrix circuit that controls various key inputs of the operation section 11. The CPU 12 receives various key inputs from the operation section 11 from the key matrix circuit 18, and controls the segment decoder 19 and digit decoder 20 to display display data in the display control circuit 1.
7, it is displayed on both the displays 31 and 32. The CPU 12 also controls the data latch 21 to control the various lamps 33, 34, 35, 3.
6, 37, 38 and a lamp control circuit 22 for controlling the lighting of the self-illuminating lamps, the data selector 23 is controlled to receive a signal from the depth switch 24.

The RAM 13 is formed with various memories, flags, and registers as shown in FIG. In other words, if each word is denoted by M[X, Y], then M[3,
8] as the number counter RPC, M
The 11 words from [4, 0] to M[4, A] are used as a memory DSPR for displaying weight and charges, and M[5, 0] to M
The 16 words of [5, F] are used as the calculation memory XREG. In addition, 5 words M[6,4] to M[6,8] are used as unit charge memory UCHA, and M[6,9] to
5 words of M [6, D] as unit weight memory UNIW
and M[6, E], M[6, F], M[7,0]~
The 5 words of M[7, 2] are used as a charge memory CHAGE, and the 5 words of M[7, 3] to M[7, 7] are used as a gram weight memory WGT that stores the weight after rounding to units of grams. . Also M [7, 8]
~M [7, C] 5 words to the second weighing circuit section 16
A second gross weight memory GRS ₂ stores the gross weight data from M[7, D] to M[7,
F], M[8, 0], M[8, 1] are the second words.
A second true value weight memory TRU ₂ stores the true value weight after flickering processing of data from the scale circuit section 16 of
and set the 5 words M[8,2] to M[8,6] as the zero point register _MZ2 of the second scale, and M[8,7]
~M [8, B] 5 words to the second weighing circuit section 16
A second stable register _M852 is used to store stable data after flicker processing of the data from.
Also, 5 of M [8, C] to M [8, F], M [9, 0]
A first gross weight memory GRS ₁ for storing the gross weight of data from the first weighing circuit unit 15 in words;
A first true weight memory stores the true weight after flickering processing of the data from the first weighing circuit section 15 using five words M[9,1] to M[9,5].
TRU ₁ , 5 words M[9, 6] to M[9, A] as zero point register MZ ₁ of the first scale, M[9,
The five words B] to M[9, F] are used as a first stable register _M851 that stores stable data after flickering processing of data from the first weighing circuit section 15. M [A, 0] ~ M [A, F], M [B, 0] ~ M
The 40 words [B, F], M[C, 0] to M[C, 7] are formed into eight registers M ₁₁ to M ₁₈ of 5 words each, and the direct reading data from the first weighing circuit section 15 is It is used for flicker prevention processing. M [C, 8] ~
M [C, F], M [D, 0] ~ M [D, F], M [E,
0] to M[E, F] are formed into eight registers M ₂₁ to _{M 28} of 5 words each, and are used for flickering prevention processing of direct read data from the second weighing circuit section 16. Key memory that stores the contents of the 8 words M [F, 8] to M [F, F] selected by the key.
It is considered as KEYM. Furthermore, one word of M[3,0] has a weight stability flag ENAF and a display fixed flag.
HOLDF, a first scale selection flag SC(1), a second scale selection flag SC(2), and M[3,
1] forms an error flag ERR.

The CPU 12 is connected to the first and second weighing circuit sections 1.
The weight count data from 5 and 16, the key input from the key matrix circuit 18, and the switch signal from the depth switch 24 are taken in, and processing based on the flowchart shown in FIG. 6 is performed. In other words, when the power is turned on, the initial settings are
Perform I/O reset, RAM clear, and display scan in sequence. In the display scan, each segment element of the weight display 31 and the charge display 32, for example, from 0 to 9, is sequentially illuminated to perform a segment check. Next, read the status and read the contents of the digital switch 24.
Set in RAM13. Next, the key-in is checked, and if there is a key-in, key processing is performed. Also, if there is no key-in, the first scale circuit section 15
Then, the weight count data from the second weighing circuit section 16 is taken in to perform flicker prevention processing. This process sequentially imports the weight count data from the first scale circuit section 15 into the registers M ₁₁ to _{M 18} at a predetermined timing, and if five or more of the eight count data in each register M ₁₁ to _{M 18} are If they are the same, store the same data in the first stable register _M851 ,
It is stored in the first true value weight memory TRU ₁ as true value weight count data. In other words, if only 4 or less of the 8 captured count data are the same, the contents of the first stable register _M851 are not changed, and therefore the first true value weight memory _TRU1 is
To prevent flickering in the display of weight data without changing the contents of the data. This is the same when the weight count data is taken in from the second weighing circuit section 16.The count data is taken in using registers _M21 to _M28 , and five or more of the eight pieces of count data are the same. For the first time, the contents of the second stable register _M852 are rewritten, and the contents of the second true value weight memory _TRU2 are rewritten. Next, the zero point registers MZ 1 and MZ 2 of the first and second scales are read from the true value weight count data obtained by taking in the count data from the first scale circuit section ₁₅ and the second scale circuit section ₁₆ . GRS (gross) data is calculated by subtracting each count data, and the GRS (gross) data is stored in the first and second gross weight memories GRS ₁ ,
Store each in GRS ₂ . Then, it is checked whether the contents of the first gross weight memory GRS ₁ are zero or not, and if GRS ₁ = 0, the first scale selection flag SC is set.
(1) to reset the error flag (ERR reset and error status indicator lamp 3)
3a), and if GRS ₁ ≠ 0, the first scale selection flag SC (1) is set, and then the second scale selection flag SC (2) is set to "1". Check whether it is installed or not. and SC
(2) If = 1, the first weighing section 1 and the second weighing section 2
It is determined that a load is applied to both, and the error flag ERR is set, and if SC(2)≠1, the above error is cleared. Next, it is checked whether the contents of the second gross weight memory GRS ₂ are zero or not, and if GRS ₂ = 0, the second scale selection flag SC is set.
(2) Reset to clear the error,
And if GRS ₂ ≠ 0, the second scale selection flag SC
(2), and then set the first scale selection flag.
Check whether SC(1) is set to "1". Note that the above error cancellation is the same process as the error cancellation described above. and
If SC(1)=1, it is determined that a load is applied to both the first weighing section 1 and the second weighing section 2, and an error flag ERR is set, and if SC(1)≠1, Clear the above error. Next, it is checked whether or not the error flag ERR is set to "1", and if ERR = 1, error processing (lighting of the error status indicator lamp 33a, etc.) is performed and the routine returns to the above-mentioned status reading. .
If ERR≠1, then it is checked whether the first scale selection flag SC(1) is set to "1", and if SC(1)=1, the first scale indicator lamp is set. 34 is turned on, the weight value taken in from the first weighing circuit section 15 is displayed on the weight display 31, the charge is calculated, and the postage is displayed on the charge display 32. Returns to reading the status described above. The above fee calculation is based on the specified contents of the various keys that have been keyed in, that is, the key memory.
Calculate by calculating from the contents of KEYM and the imported weight value. The weight value is displayed on the weight display 31 and the postage is displayed on the charge display 32.
Weight data and charge data are retrieved from the display memory DSPR by the CPU 12, and the display control circuit 1
7 and is executed by its display control circuit 17. Also, if SC(1)F≠1, then the second
Check whether "1" is set in the scale selection flag SC(2) of Weight indicator 31 for weight values taken in from the circuit section 16
Display to 〓, price calculation 〓 〓。。。。。。。。。。。。。。。。。。。。。。。。。。。。 The above charge calculation is also processed in the same manner as the above-mentioned charge calculation, and the display control circuit 17 displays the weight data and charge data. Further, if SC(2)≠1, it is determined that there is no load on either of the scale parts 1 and 2, the weight display 31 shows 0, the charge display 32 goes off, and the first, The processes of turning off the second weighing section indicator lamps 34 and 35 and turning off the underweight lamp are carried out in sequence, and the routine returns to reading the above-mentioned status.

In such a configuration, for items such as regular mail in the range of several tens of grams to several hundred grams, the weight is 1 kg, the usable range is 20 g or more, and the minimum scale is
The first weighing section 1 weighing 0.5 g is used for weighing, and for items in the range of several hundred grams to several kilograms, such as parcels and mail, the weighing section weighs 10 kg and the usable range is 200 g.
As described above, the second weighing section 2 with a minimum scale of 5 g may be used for weighing. For example, the weighing pan 8 of the first weighing section 1
When regular mail is placed on the machine, weight count data is taken in from the first weighing circuit section 15 and flicker prevention processing is performed. The stable weight count data is then taken into the first true value weight memory TRU ₁ , and then the zero point count value is subtracted and stored as gross count data in the first gross weight memory.
Stored in GRS ₁ . Then, it is determined that GRS ₁ ≠0, and the first scale selection flag SC(1) is set to "1". At this time, if weighing is not performed in the second weighing section 2, it is determined that the weighing operation is correct and the first weighing section indicator lamp 34 is lit. In addition, the count data of the first gross weight memory GRS ₁ is rounded to the nearest gram unit and stored in the gram weight memory.
The weight value stored in WGT is displayed in memory.
It is stored in the weight section of the DSPR and displayed on the weight display 31 by the display control circuit 17. On the other hand, the operation section 11
The content specified by the key (for example, fixed form/non-standard form specification, express delivery specification, etc.) is determined via the key memory KEYM. Then, a predetermined charge program ROM 14 is called based on the key designation contents, and the weight value in the gram weight memory WGT is processed based on the charge program, and the postage is calculated and stored in the charge memory CHAGE. The charge data in this charge memory CHAGE is displayed in the display memory DSPR.
is stored in the charge section of , and displayed on the charge display 32 by the display control circuit 17 . In this way, the user can check the weight of the regular mail and its charge on the weight display 31 and the charge display 32, and the use of the first weighing section 1 for weighing is confirmed by the first weighing section 1. This can be confirmed using the section indicator lamp 34.
Furthermore, when a parcel is weighed using the second weighing section 2, its gross count data is taken into the second gross weight memory GRS ₂ , but after being rounded to the gram unit, it is stored in the gram weight memory WGT.
The weight is stored in the display memory DSPR and displayed on the weight display 31 via the weight section of the display memory DSPR. The charge at this time is also calculated after the charge memory CHAGE
The charge is stored in the display memory DSPR and displayed on the charge display 32 via the charge section of the display memory DSPR. In this way, the weight display 31 and the charge display 32 are displayed for the two weighing units.
Since they are commonly used for display, it is possible to reduce the display space and reduce costs. Also, if you accidentally weigh a parcel post in the second weighing section 2 while a regular mail is being weighed in the first weighing section 1, at this time, the first and second weighing sections Since both the scale selection flags SC(1) and SC(2) are set to "1", the error flag ERR is set and error processing is performed. As a result, the error state indicator lamp 33a lights up to perform a notification operation and perform processing such as stopping subsequent processing operations.

In this way, it is possible to use the first weighing section 1 and the second weighing section 2, which have different weights and minimum scales, depending on the contents of the mail, so that the mail can be weighed appropriately based on its weight range. This allows reliable measurement. Furthermore, since the weight value and postage obtained by weighing by both the first and second weighing sections can be displayed on a common display, the display space can be reduced and costs can be reduced.
In addition, since the lamp is displayed to indicate whether the data is from the first or second weighing section, confirmation can be made with certainty. Furthermore, when the first and second weighing sections perform simultaneous weighing, error processing is performed and this condition is displayed with a lamp, so that incorrect weighing operations can be easily detected.

In addition, although the above-described embodiment has been described as having two weighing units, the present invention is not necessarily limited to this, and three weighing units with different weighing amounts and minimum scales can be used.
It may be equipped with more than one stand.

As described in detail above, according to the present invention, by providing a plurality of different weighing weights and minimum scales, it is possible to carry out appropriate weighing for the weight range of mail items, improving the reliability of weighing, and also making it possible to improve the reliability of weighing. By displaying the weight value and postage obtained by the amount of parts on a common display, the display space can be reduced and costs can be reduced, and it is also possible to display the data from which weighing part. It is possible to provide a postal scale system that can reliably notify using an element.

Further, according to the present invention, when weight data is input from at least two of the plurality of weighing sections at the same time, the error notification means is used to notify the user, so that it is possible to easily detect incorrect weighing operations. system.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is a perspective view showing the external appearance, Fig. 2 is a front panel view of the display device, Fig. 3 is a view showing the operation section, and Fig. 4 is the main circuit. FIG. 5 is a block diagram showing the configuration, FIG. 5 is a diagram showing the main memory configuration of the RAM, and FIG. 6 is a flowchart showing the main processing by the CPU. 1...First weighing section, 2...Second weighing section, 3...
Display device, 31...Weight display, 32...Charge display, 33a...Error status indicator lamp, 34...
...First scale indicator lamp, 35...Second scale indicator lamp, 11...Operation unit, 12...CPU (Central Processing Unit), 13...RAM (Random Access Memory), 14... ...ROM (read only memory), 15...first scale circuit section, 16...
...Second weighing circuit section, 17...Display control circuit, 22
...Lamp control circuit, SC(1)...First scale selection flag, SC(2)...Second scale selection flag, ERR
...Error flag, GRS ₁ , GRS ₂ ...Gross weight memory.

Claims (1)

[Scope of Claims] 1. A plurality of weighing units having different weighing amounts and minimum graduations, a display device provided in common to each weighing unit and equipped with a weight display and a charge display, and a display device that corresponds to each of the weighing units. A plurality of display elements are provided on the display device to indicate the weighing amount and minimum scale of each weighing section with characters displayed, and various keys to specify the type of mail such as ordinary mail and parcel mail and the contents of the mail. and,
A memory is provided corresponding to each weighing section and stores the weight value from each weighing section, and when a weight value is stored in only one of these memories, that weight value is valid and the A means for calculating postage based on the weight value and the contents specified by the various keys, and a means for calculating the postage based on the weight value and the contents specified by the various keys, and a method for displaying the postage obtained by this means and the weight value stored in the memory and determined to be valid on the charge display and the weight display. and when a weight value is stored in only one of the above-mentioned memories, it is determined which weighing section the weight value comes from based on the memory in which the weight value is stored, and the corresponding above-mentioned display is carried out. A postal scale system comprising means for selectively displaying elements. 2. A plurality of weighing units with different weighing capacities and minimum graduations, a display device provided in common to each weighing unit and equipped with a weight display and a charge display, and a display device provided in the display device corresponding to each of the weighing units. a plurality of display elements for respectively indicating the weighing amount and minimum scale of each weighing section, which are displayed in text, and various keys for specifying the type of mail such as ordinary mail and parcel mail and the contents of the mail;
A memory is provided corresponding to each weighing section and stores the weight value from each weighing section, and when a weight value is stored in only one of these memories, that weight value is valid and the A means for calculating postage based on the weight value and the contents specified by the various keys, and a means for calculating the postage based on the weight value and the contents specified by the various keys, and a method for displaying the postage obtained by this means and the weight value stored in the memory and determined to be valid on the charge display and the weight display. and when a weight value is stored in only one of the above-mentioned memories, it is determined which weighing section the weight value comes from based on the memory in which the weight value is stored, and the corresponding above-mentioned display is carried out. A postal scale system comprising means for selectively displaying an element, and an error notification means that operates when weight values are stored in at least two of the memories at the same time.