WO1986004710A2

WO1986004710A2 - Device for immediately detecting a urine flow in infants and small children

Info

Publication number: WO1986004710A2
Application number: PCT/CH1986/000016
Authority: WO
Inventors: Svätopluk RADAKOVIC
Original assignee: Radakovic Svaetopluk
Priority date: 1985-02-12
Filing date: 1986-02-10
Publication date: 1986-08-14
Also published as: WO1986004710A3; DE3603993A1; AU5392386A; CH676060A5; EP0211874A1; GB8606416D0

Abstract

The device comprises a detector with a moisture sensor, an integrated emitter and a signalling unit comprising an integrated receiver and an indicator. The detector is provided in the napkin of the infant; the presence of urine is determined by the electric properties of urine on the moisture-sensitive sensor; said information are transmitted to the wireless signalling unit and generates an acoustic or optical indication. The surveillance of an infant or a small child is possible in bed, in the car and also outdoors. The device ensures a full protection of infants and small children against ''wetting''.

Description

A facility for instant urine leak detection in infants and young children.

Description.

The invention relates to immediate detection of urine discharge in infants and young children. Today there is no known reliable method which enables the immediate detection of urine discharge in the infants and young children and the necessary immediate treatment and exchange of the laundry. An electronic device is described here, which enables immediate detection of the outflow of the urine in infants and toddlers. It is possible to monitor both an infant in bed or in a stroller and, in the case of a toddler, outside the cot so that the child is always fully protected against moisture is guaranteed. The basic version of the device consists of two main parts: the moisture sensor and the signaling part, their basic block circuits are shown in Fig.1.

The wet bulb is small in size and is wholly or at least its wet sensitive sensor (NS) in the laundry, for example in the baby's diapers. The signaling section is visible and audible bar, or at least audibly, in an accessible place, for example on a wall of the bed or on, or in clothing, for example a pocket of the child's clothing. If the signaling part is removable, the signaling part can also be in a Distance (d) to 10m <d <100m from the child.

The moisture sensor uses a moisture-sensitive sensor (NS) and a measuring circuit (M) to determine the urine outflow and transmits this information wirelessly to the receiver (E) of the signaling section using a built-in transmitter (S). The signaling section gives the whistleblower (H) and built-in loudspeaker (L) an acoustic or with a light source (&) an optical indication. The acoustic indication is given as sound impulses, the visual indication as flickering of the light source (G).

The principle of the moisture-sensitive sensor (NS is based on the utilization of the electrical properties of the urine. An absorbent, dry, electrically non-conductive material is impregnated with the urine and thus its electrical properties are changed by leaps and bounds; it is sufficient to monitor it only in the dry and soaked state The moisture-sensitive material (NS) consists of an insert (1) made of an absorbent material and two measuring contacts (2a) (2b) touching this insert (1) Fig. 2. It is used to monitor its electrical properties The moisture-sensitive sensor (NS) in a measuring circuit of the measuring circuit (M) Fig. 2. The measuring circuit (M) consists of a measuring element (Oll) and an electronic switch (012) Fig. 2. After detection of a change in the monitored electrical property of the with the urine-soaked insert (1) the measuring element (011) actuates the electronic switch (012) Fig. 2 and this switches on the transmitter of the moisture sensor and the information is broadcast. The absorbent insert (1) is replaced with a new one after each use , dry replaced.

A basic embodiment of a moisture sensor (1000) is shown in Fig. 3 and Fig. 4. The body of the moisture sensor, a cuboid, consists of the upper (4) and the lower (5) part of Fig. 3, Fig. 4 and is waterproof .The two measuring electrodes (2a) (2b) are on the upper part (4) and the absorbent material, which in this example has the form of a flat, sheet-shaped insert (1), is placed on the measuring electrodes (2a) (2b) a part (3) Fig.3, Fig.4), which is called the closure, Fig.4. In the inner space (84) of the wetness sensor is the electronic part.

In principle, almost any free frequency can be used for the wireless transmission of the information from the moisture sensor into the signaling part. The lowest frequencies between 20 and 100 kHz in the long-wave range are possible or are the frequencies Suitable in the KW range, VHF range or UHF range. Regardless of the switching frequency, some common requirements for the transmission, the transmitter and the receiver must be met.

So that the power of the transmitter in the moisture sensor can be sufficiently large and the service life of the built-in power source can be 24 hours, for example, two years with daily use of the device, the transmitter can only be in HF pulses and the information can either be with one or more transmit pulses or also with an uninterrupted transmission in pulses until the wet insert (1) is removed.

A transmission of the information with at least one or more transmission impulses but no uninterrupted transmission in impulses has the advantage of a smaller power consumption. However, the indication must be given until it is perceived. A disadvantage of such transmission is that the information must arrive in one or more transmission impulses must be stored in the signaling part and after each signaling this memory must be reset manually and only then is the device ready for a new monitoring. A transmission of the information even with a greater distance in consideration of power consumption, e.g. 60 seconds of the neighboring transmission pulses a continuous transmission in Im Pulse until the wet insert (1) is removed, however, has the advantage that a short-term memory with a storage time which only needs to be a little longer than the length of the pause between two adjacent transmit pulses is sufficient to store the arrival of a transmit pulse. As soon as the wet insert (1) the transmitter in the wetness sensor is switched off, after the storage time has expired the short-term memory is empty and after this single manual intervention the device is ready for a new monitoring. The length of the transmission pulses can be in the range of a few tenths of a second, and the pause between the pulses can be in the range of a few seconds to minutes. If the transmission pulses are sufficiently small, they can be used directly to trigger the acoustic or optical signal and a short-term memory is not possible more necessary.

A disturbance of the other facilities or neighboring facilities by other services or mutual disturbances and possible false statements must be excluded.

These requirements can be met in various ways.

The first and simplest option corresponds to the requirement for a small range of the device (d ₂ ), which is limited as sharply as possible, which is referred to as (d ₂ ), but this need not also refer to (d ₁ ) The range of the transmitter must be in the wet sensor, in such a case then (d ₁ ) = (d ₂ ) .If a larger range (d ₂ ) of the device is required, for example 10m <d ₂ <100m, the requirement of the undisturbed one must be Operation in a different way.

Differentiating between several, with a view to large blocks of flats, for example 100 or even more wetness sensors, by means of different transmission frequencies, is not a simple solution with regard to the number of transmission frequencies required for this. In the UHF range 420 - 470 MHz, one could expect a spacing of the transmission frequencies of 15 kHz, which would correspond to a requirement for a 1.5 MHz wide band, for example with 100 necessary transmission frequencies. To prevent possible interference from other services, the carrier frequency could be encoded with an RF signal or digitally, for example.

In the long wave range 20 - 100kHz it is possible to achieve such selectivity with the quartz filters in the receiver of the signaling part that a distance of 10-20 Hz of the transmission frequencies is possible. If necessary, for example 100 transmission frequencies corresponds to the requirement for a 1kHz -2kHz wide Tape,

In facilities where the transmission channels are occupied by the facilities only for a short time, only a few transmission frequencies are used and one is selected Especially free frequency through the device is also possible. The type of use of a transmission frequency with several devices is relatively complex and unsuitable for the purpose of the transmitter in the wet sensor. In the case of devices with a common transmission frequency, it is also possible to distinguish between individual transmitters and only request the Bigenes signal by encoding the individual carrier frequencies with mutually different modulation signals. A digital code can be used for this, or a very widespread system is decadic low-frequency coding, in call radio and radio communication This principle can also be used with this device if, considering the possibility of mutual interference between the facilities in large blocks of flats, a correspondingly large number of characters is selected, for example 3-tone which corresponds to a three-digit code number of the transmitter and receiver Transmitters then transmit in radio frequency pulses coded by the selective call transmitter N7 and these are decoded after the reception of appropriately programmed selective call filters. The programming of the selective call transmitter and selective call filter can either Hardwired or programming switches can be used in the devices so that any re-programming is easy and possible at any time. The assigned code numbers are deliberately distributed and then a larger range (d ₁ ) of the transmitter in the wet sensor 10m <d ₁ <100m and high sensitivity of the receiver can be used and in this case the range (d ₂ ) of the device is equal to the range of the transmitter in the wet probe. As a modulation system, narrowband frequency modulation is used in the FM or UHF band. With range (d,) of the transmitter in wet probe 10 <d ₁ <100m, an uninterrupted transmission of the coded high-frequency impulses is essential. The reason for this is that even with overlapping ranges and accidental interference due to the simultaneous transmission of several transmitters, the signals of the own transmitter must be recognized in any case However, the signals from a neighboring transmitter may be stronger than the signals from the own transmitter. If information is transmitted with the transmission of only one or a few transmission pulses and if two or more transmitters are operated accidentally at the same time, then the own signal would be permanently lost in the foreign signal be and it However, if the coded radio frequency pulses are continuously transmitted, the own signal in the stronger foreign signal is only lost as long as the third party transmitter is transmitting, which transmits until its wet insert (1) is removed, this is individual but it is can be seen in the presence of a person nearby, in a maximum of 1 - 5 minutes, but because your own wetness sensor continues to transmit, your undisturbed signal can now be recognized, decoded and an indication given, so the information is not lost, the result is a delay of 1 - 5 minutes late detection of your own signal. With the ranges (d,) of the devices a few 10m to 100m, the LW, KW, UKW, or UHF transmitters must either have several transmission frequencies available or A coding of the carrier frequency, for example NF selective call or a digital coding must be installed and the information must be transmitted with an uninterrupted transmission of the radio frequency pulses.

In the following, examples of some devices with an information transmission between the moisture sensor and the signaling part in different suitable Baader and also devices of different range, their advantages and disadvantages will be described. The descriptions are limited to systems with an information transmission in the long-wave range between 20-70 kHz because a transmission in this area can bring various advantages, and on systems with an information transmission in the usual and available UHF range 420-470 MHz for similar purposes, whereby similar advantages and disadvantages are also with a transmission in the VHP range or in the UHF range 890- 960 MHz to be expected. To simplify matters, only the basic and simplified block circuits and designs of the devices are shown and described. The descriptions relate temporarily to use fertilizing an only general, basic moisture sensor with a monitoring of unspecified electrical properties of the insert (1) and an only basic design Fig.3, Fig.4.

The system of the numerical designation of the devices and function blocks is described in Appendix (A). An information transmission between a moisture sensor (1000 U) and a signaling part (3000 U) in the UHF band 420 - 470 MHs and a child outside the bed is shown in Fig. 5, i.e. a child in bed in Fig. 6. The signaling part (3000 U) Fig. 8 is portable and can be within a distance (d ₁ ) 10 <d ₁ <100m from the child or. of the wet bulb (1000 U) Fig. 3, Fig. 4, Fig. 7, in this case the range (d2) of the device is equal to the range (d ₁ ) of the transmitter in the wet bulb. A simplified block circuit of the wet bulb ( 1000 U) is shown in Fig.7, example of an embodiment in Fig.3, Fig.4. An example of a basic design of the signaling part is shown in FIG. 9 and its simplified block circuit in FIG.

The simplified block circuit of the moisture sensor (1000 U) Fig.7 consists of the measuring element (111), the electronic switch "switch on transmitter" (112), the selective call transmitter (140), the UHF transmitter (160) and the UHF antenna (41) A waterproof button (79), the circuit (100) and the light-emitting diode (15) are used for battery control. The UHF antenna (41) is flexible and is off After a determination of the changed electrical properties of the insert (1), the measuring element (111) actuates the electronic switch (112) "switch on transmitter", which switches the transmitter sequence control (170), the selective call transmitter (140) and the UHF The transmitter sequence control (170) determines the length of the transmission pulses, the length of the pause between the adjacent transmission pulses and the number of transmission pulses which are broadcast. The selective call generator (140) generates the code numbers Appropriate NF signals and controls the coding process. After removing the soaked insert (1), the measuring element (111) actuates the electronic switch (112), which switches the transmission sequence control (170), the selective call transmitter (140) and the transmitter (160) every now and then after inserting a new dry insert (1) the moisture sensor is ready for a new monitoring. The simplified block circuit of the portable and removable signaling part (3000 U) Fig. 8 consists of the UHF receiver (320) and the UHF antenna (42), the selective call filter (340), the short-term memory (351), the electronic switch (352 ) "Switch on the whistleblower", the whistleblower (380), the button (44) for switching the acoustic signal to continuous tone, the potentiometer (36) for adjusting the volume of the acoustic signal, the potentiometer is combined with the on / off switch of the signaling part , the Loudspeaker (34), a light source (16) as a transmitter of the optical signal and the switch (37) for selecting the acoustic or optical signal. The circuit (300), the key (13) and the light-emitting diode (15) are used for battery control. After receiving with the UHF receiver (320) the information from the moisture sensor (1000 U) in the form of a coded pulse, its coding is checked with the selective call filter (340) and if it corresponds to the programming of the filter, the information is received of the next pulse stored in the short-term memory (351), this actuates the electronic switch (352) "switch on the indicator", this switches on the indicator (380) and it is selected with the switch (37) with the loudspeaker 1 (34 ) an acoustic or with the light source (16) an optical indication. After the end of the transmission of the wet bulb (1000 U) the short-term memory (351) is emptied, this operates the electronic one again Switch (352), the indicator (380) is switched off and the device is ready for a new monitoring. To set the desired volume of the acoustic information when the short-term memory (351) and the electronic switch (352) are in a popular state, the acoustic information can be switched on with the button (44) and switched to continuous tone, and its volume can be adjusted with the potentiometer (36) can be set. The numerical designation of the operating and signaling sations elements in the example of an embodiment of the signaling part (3000 U) Fig. 9 corresponds to the name and designation in the block circuit (3000 U) Fig. 8.

An information transmission between the moisture sensor and the signaling part in the lower LW range 20-70kHz and a signal transmission with the magnetic field is in Fig. 11 "Information transmission with a child in bed" and in Fig. 12 "Information transmission with a child outside the bed" and a signaling part (4000 L) carried on the carrying belt (19). The wet bulb (2000 L) is of very small dimensions and is located in the laundry of the infant or toddler. The range (d ₁ ) of the wet bulb is d ₁ = 0.3 m and the signaling part (40001) is no more than about 0.3 Removable from the wet probe, the range (d ₂ ) of the device is equal to the range (d ₁ ) of the transmitter in the wet probe. The simplified block circuit of a wet bulb (2000 L) with built-in LW transmitter is shown in Fig.13, its basic design in Fig.3, Fig.4. The simplified block circuit of the signaling part (4000 L) with built-in LW receiver is shown in Fig. 14, a basic version in Fig. 15. The simplified block circuit of the moisture sensor (2000 L) consists, similar to that of (1000 U) Fig. 7, a measuring element (211), the electronic switch (212) "switch on transmitter", the transmission sequence control (270), an LW transmitter (260) and at least one transmitter coil (90), but if, as will be shown later, the position of the wet bulb (2000 L) in relation to the receiver coil (40) or receiver coil (56) Fig. 14 must be allowed to be arbitrary To transmit the signal-transmitting magnetic field, three mutually perpendicular transmission coils (90 X), (90 Y), (90 Z) are used. In the block circuit Fig. 13, only one transmission coil (90) is used. The water-tight button (79), the circuit (200) and the light emitting diode (15) are used for battery control. After determining a change in the monitored electrical properties of the insert (1), the measuring element (211) actuates de. electronic switch (212), which switches on the transmitter sequence control (270) and the IW transmitter (260) and the information is emitted by the transmission coil (90) as a signal-transmitting magnetic field. The transmission sequence control (270) determines the length of the transmission pulses, the length the pause between two adjacent transmit pulses and the number of pulses that are emitted. In this case, the transmit pulses are continuously emitted with a distance between two adjacent transmit pulses of approx. 10 lake. After removing the soaked insert (1), the measuring element (211) actuates the electronic switch (212), the transmission sequence control (270) and the LW transmitter are switched off and after inserting a new dry insert (1) the wetness sensor is ready for a new monitoring. The simplified block circuit of the signaling section (4000 L) Fig. 14 consists of a built-in ferrite antenna (56), a switching socket (51 B) for connecting the external antenna (40) with the plug (51 S) and for switching over with the contact (51 s ) of the LW receiver (420) on the built-in ferrite antenna. (56) in the absence of an external antenna (40), the bored receiver (420), the indicator (480), the button (44), the potentiometer (36) combined with the on and off switch of the signaling part (4000 L) for adjustment the volume of the acoustic signal, the switch (37) for selecting the acoustic or optical signal, a loudspeaker (34) for transmitting the acoustic signal and a light source for transmitting the optical signal. The circuit (400), the key (13) and the LEDs (15) are used to check the battery.

To receive the information from the moisture sensor (2000 L) Fig. 13 with a child in bed (38) Fig. 11, there is the external antenna (40), a large-area air coil Fig. 10, which is installed in a waterproof cover and is located on the or under the mattress (87) fig. 11 under the infant. The built-in ferrite antenna (56) Fig. 14 is used to receive the information from the moisture sensor (2000 L) in a child outside the bed fig. 12. A basic version of the signaling part (4000 L) is shown in Fig. 15. After receiving either with the external antenna (40) or with the built-in ferrite antenna (56) information transmitted from the wet sensor (2000 L), the signal generator (480) is switched on with the signal rectifier at the output of the receiver (420) and optionally with the loudspeaker an acoustic or with the light source (16) gives an optical indication. If the selectivity of the input circuit is not sufficient, a quartz filter (Qe) Fig. 14 can also be used in the receiver (420). Because the transmitter in the wet sensor (2000 L) sends pulses with a distance of approx. 10 see and continuously until the wet insert (1) no short-term memory is necessary and the pulses from the signal rectifier in the

Recipients (420) can directly trigger the warning pulses. After the transmission of the wet bulb (2000 L) has ended, the warning pulses are no longer triggered with the signal rectifier of the receiver (420) and the device is ready for a new monitoring. The power of the transmitter (260) in the wet sensor (2000 L) and the sensitivity of the LW receiver (420) in the signaling part (4000 L) are matched to each other so that the range (d-) Fig.11, Fig. 12 of the wet sensor and therefore the range (d ₂ ) of the device is limited to d ₁ = d ₂ = 0.3 m. Only two to four devices can then be located close to each other, for example with four close to each other lying children's beds, or outside the bed with a group of children, interfere with each other.To prevent this, four different transmission frequencies are sufficient for information transmission from the bed and undisturbed information transmission with a carrier frequency that is not or only coded is possible. This has the advantage of a simple one Transmitter (260) Fig. 13 and receiver (420) Fig. 14 what is particularly important when looking at the available space in the moisture sensor (2000 L). To send a wet sensor to a group of children with simultaneous indication of two or more signaling parts To establish it is necessary to increase the distance between children to more than 0.3 m.

If a quartz filter (Qe) is used in the receiver (420) Fig. 1, the frequencies can have a spacing, for example 30 Hz, and the claimed bandwidth of the band can then be only 120 Hz at four different transmission frequencies.

The disadvantage of such a design of the device is the limited range (d ₂ ) d ₂ = d ₁ = 0.3 m, the signaling part (400 L) cannot be removed from the moisture sensor more than 0.3 m.

The signaling part (4000 L) is interchangeable, one and the same device can either be used to monitor the child in bed or outside the bed. This is possible with a device holder coupling (28 K) Fig. 16. A piece of this coupling is with the carrying strap (19) Fig.12 and the second piece with the fastening (7000) Fig.17 connected with thermoplastic rivets (18/1) (18/2) Fig.16. A signaling part inserted in the coupling (28 K) (4000 L) is secured in this with the mounting brackets (24/1) (24/2) and screws (20/1) (20/2) Fig. 16. When monitoring a child outside the bed (36) is located the signaling part (4000 L) in the coupling on the carrying belt (19) Fig.12 and the whole is carried by the child. When monitoring a child in bed (38) Fig.11 the signaling part (4000 L) is in the Coupling (28 K) on the attachment (7001) Fig. 11, Fig. 18. Another option is to use two signaling parts (4000 L), one is then permanently in the attachment (7001) Fig. 11 on the cot ( 38) and the other on the riser (19) Fig.12 which offers more comfort. The attachment (7000) Fig.17 with built-in coupling (28 K) is designated as attachment (7001) Fig.18 and is attached to the bed (38) Fig.11. The fastening (7000), it is an example of a basic version Fig.17, consists of a front (63) and a rear part (64) on the inner sides of a covering of a non-slip material (65/1) (65/2) ( 65/3) (65/4). Between the two parts (63) (64) there is the grid of the bed (38) and the two parts (63) (64) are with the fastening screws (71/1) ( 71/2) (71/3) (71/4) pressed against the bed rail. Because the distance between the rails can vary, the rear part (64) is also flat. The ends of the fastening screws (71/1) (71/2) (71 / 3) (71/4) are covered with protective caps (66/1) (66/2) (66/3) (66/4). When monitoring a child in a playpen, a classification similar to that in Fig. 11 can be made are used and the external antenna (40) Fig.10 is then under the playpen.

It is not always necessary to carry the signaling part (4000 L) on the carrying belt (19) and it is still possible to transfer the information to a child outside the bed. Since the information from the wet bulb (2000 L) is transmitted continuously with the high-frequency pulses in broadcast at a distance of approx. 10 sea, you can convince yourself by approaching the signaling part (4000 L) and its built-in antenna (56) to d ₁ = 0.3 m about the state of the moisture-sensitive sensor whether the moisture sensor is transmitting or not.

A sufficiently small and light version of the signaling part (4000 L) can also be attached to the child's clothing with at least one or more safety pins and thus worn. The safety pins can be on the back of the signaling part (4000 L) or on the back of one bag made for this purpose in which the Signaling part (4000 L) is carried. With the signaling part (4000 L), a different type of fastening than the mounting brackets (24/1) (24/2) must be chosen with regard to the convenience of carrying and the dimensions of the bag become. A sufficiently small and light signaling part (4000 L) can also be carried in a pocket in the child's clothing if there is an acoustic signal. In the case of a child in bed, the signaling part is then located in a suitable device holder coupling in the attachment (7000) and on the bed (38). It is possible the power of the LW transmitter (260) in a wet sensor, which is then referred to as (2100 L) and the sensitivity of the LW receiver (420) when receiving the built-in antenna (56) in a signaling part, which is then called (4100 L) is to be selected so that the range of the transmitter in the wet sensor (2100 L) is increased to d ₁ = 1.0 m. Then, to monitor a child in bed or in the playpen, the large-area receiver coil (40 ) Fig. 10 are used. An example of a basic design of the signaling part (4100 L) is shown in Fig. 21, Fig. 22, it is also an example of a signaling part. which is not carried by the child on a carrying belt (19) but in a clothing pocket. When monitoring a child in bed, the signaling part (4100 L) is still in one Fastening (7002) Fig. 23, Fig-24 and if possible in the middle of the side rail of the bed (38) Fig. 19. Because no external antenna (40) now has to be connected, the signaling section (4100 L) can simply be inserted into the mounting (7002). In order to prevent mutual interference between the individual devices, several transmission frequencies are now required for information transmission Bed Fig. 19, Fig. 20 and a range of the moisture sensor d ₁ = 1m and 6 different, specifically distributed transmission frequencies, it is possible to rule out mutual interference. If a quartz filter can be used in the receiver (420) in the signaling part (4101 L) the distance between the transmission frequencies, for example, is 30 Hz and the claimed width of the band is 200 Hz. When monitoring outside the bed and a group of children, it is possible that some facilities have the same transmission frequency and mutual interference cannot be excluded simultaneous signaling of several devices is only possible with mi triExpansion of the mutual distances may determine the sending moisture sensor. The block circuit of the moisture sensor (2100 L) and an entire block circuit of the signaling part (4100 L) Fig. 22 are not shown because they are the same as Das (2000 L) Fig. 13 and except for the missing outer coil (40) and the missing switching socket (51 B) the same like the (4000 L) Fig. 14.

If in such a device with information transmission from the wet bulb (2000 L) or (2100 L) in the LW range 20 - 70 kHz, there is a need for information transmission and signaling even at a greater distance and a range of the device (d ₂ ) 10m <d ₂ <100 m arises, the information emitted by the wetness sensor (2000 L) or (2100 L7 in the LW range 20 - 70 kHz has to be reduced to max. D ₁ = 0.3 m with the (4000 L) or after receiving it d ₁ = 1 m for the (4100 L) removable LW receiver in the signaling section with an additional transmitter with a greater range (do) 10m <d ₂ <100m, for example a UHF transmitter which is designated as (5000 U) can be transmitted again. Then it can be received with a removable and portable signaling part (3000 U) with a built-in UHF receiver within a range (d ₂ ) of the device 10 m <d ₂ <100 m. In the embodiment described below, the UHF transmitter is an additional transmitter (50 00 U) to an existing but provided signaling part which with a range (d ₁ ) of the transmitter in the wet bulb (2000 L) d ₁ = 0.3 m as (4200 L) and with a range of the transmitter in the wet bulb (2100 L) d ₁ = 1 m is referred to as (4300 L). It is then possible to retrofit an existing device to a range (d ₂ ) of the device 10 m <d ₂ <100 m with an additional UHF transmitter (5000 U) and a portable one Signaling section (3000 L) to be supplemented. General representation of such information transmission and with a moisture sensor (2000 L) with range d ₁ = 0.3 a is shown in Fig. 25. a child outside the bed and a signaling part (4200 L) carried on the carrying belt (19) is shown in Fig. 26 and for a child in bed in Fig. 27. Because some facilities are within their range, for example in larger blocks of flats, coding of our carrier frequency, for example in the selective call procedure, must be guaranteed. The block circuit and the execution of the moisture sensor either (2000 L) or (2100 L) remains unchanged and is shown in Fig. 13 and Fig. 3, Fig. 4. shown. The simplified block circuit of the signaling part (4200 L) with additional UHF transmitter (5000 U) is shown in Fig. 28 and an example of an embodiment in Fig. 29. The block circuit of the signaling part (4200 L) Fig. 28 corresponds to the block circuit of the signaling part (4000 L) Fig. 14 with the difference that when a UHF additional transmitter (5000 U) is connected, not the whistleblower (480) but the additional transmitter (5000 U) is connected to the signal detector at the output of the LW receiver (420). The same difference is in the Block circuit of the signaling part (4300 L) and the signaling part s (4100 L) Fig. 22. Furthermore, a 5-pin socket (33 B) for connecting the additional transmitter (5000 U) and for connecting the UHF transmission antenna (30) Fig.26 or (42) Fig.32 a socket (22 B) is provided. If there is no additional transmitter (5000 U) in the signaling section (4200 L) Fig. 28, the signal rectifier at the output of the LW receiver (420) must be connected to the input of the whistleblower (480) with a wire jumper. The UHF transmitting antenna (30) is on the carrying belt (19) Fig. 26, the UHF transmitter antenna (42) is on the attachment (7003) Fig. 32. If the monitoring part of a child outside the bed (4200 L) or (4300 L) is not A UHF transmission antenna must be inserted into the socket (32 B) on the carrying belt (19).

The design of the signaling part (4200 L) Fig. 29 is the same as the signaling part (4000 L) Fig. 15 except for the socket (22 B) and the additional socket (33 B). The additional UHF transmitter (5000 U) is attached to the signaling part (4200 L) with two screws (83/1), (83/2) and connected with the plug (33 S).

The simplified block circuit of the additional UHF transmitter (5000 U) is shown in Fig. 30. The block circuit consists of the transmission sequence control (570), the selective call transmitter, the UHF transmission (560) and the on / off switch (14) Signaling part (4200 L) on the carrying belt (19) or on the fastening (7003) Fig. 32 a device coupling (86 K) Fig. 31 is determined. This has a contact pin (22 S) for connecting the UHF transmitting antenna (30) Fig. 26 or (42) Fig. 32 to the ÜHF additional transmitter (5000 U) determined. After receiving the information emitted by the wetness sensor (2000 L) or (2100 L), the transmission sequence control (570) is switched on with the signal rectifier in the receiver (420) in the connected and switched on additional UHF transmitter (5000 U), this switches on and then controls the selective call transmitter (540), the UHF transmitter (560) and the information is broadcast in the UHF range.

When the additional UHF transmitter (5000 U) is switched off, the signal rectifier in the receiver is connected to the whistleblower (48p) with the contact (14 b) of the on-off switch (14).

The portable signaling part (3000 U) is shown in Fig.8 and Fig.9 and remains unchanged. In the devices in which a larger range (dg) of the device 10m <d ₂ <100m is required from the beginning, but for certain reasons, for example its simplicity, an unnecessary external antenna but a transmitter coil built into its interior and a small attenuation If the signal from the wet laundry, the wet probe (2000 L) or (2100 L) with built-in LW transmitter is used, the UHF transmitter can be implemented with a LW receiver as a single unit, a relay transmitter. With a range (d ₁ ) d ₁ = 0.3 n of the transmitter in the wet sensor and the LW receiver, the relay transmitter is considered (6000 U), with a range (d ₁ ) d ₁ = 1m of the Transmitter in the wet bulb (2100 L) and the LW receiver designated (6100 L).

The principle of such information transmission is shown in Fig. 33. The information transmission for a child in bed is shown in Fig. 35, for a child outside the bed and a relay transmitter (6000 U) carried on the carrying belt in Fig. 34. The simplified block circuit of the signaling part (3000 UL) is shown in Fig. 38 , its design is the same as that of the signaling part (3000 U) and this is shown in Fig.9. The block circuit of the relay transmitter (6000 U) consists of an LW receiver (620), to which the external antenna (40) can be connected using the switching socket (51 B) or, if the external antenna (40) is missing, the built-in ferrite antenna (56), the transmission sequence control ( 670), the selective call transmitter (640) and the UHF transmitter (660). The circuit (600), the button (13) and the light-emitting diode (15) are used for battery control. After receiving information from the moisture sensor (2000 L. ) with the external antenna (40) or the built-in ferrite antenna (56) and the LW receiver (620) with the signal rectifier in the receiver (620) the transmission sequence control (670) is switched on, this switches on and controls the selective call transmitter (640) , the UHF transmitter (660) and the information is broadcast in the UHF band. In Fig. 37 is an example of an embodiment of the relay transmitter (6000 U) which except for an information transmission half of the bed is carried by the child on a shoulder strap.

It is also possible to increase the performance of the LW transmitter installed in the wetness sensor and the sensitivity of the LW receiver in the signaling part so that the range (d ₁ ) of the transmitter in the wetness sensor and thus also the range (d ₂ ) of the device during an information transmission only in the LW range between 20 - 70 kHz at d ₁ = d _{2 is 10 m <d1 <100 m} . The moisture sensor with a more powerful transmitter is referred to as (8000 L), the signaling part with higher sensitivity of the LW receiver as (9000 L). An example of such information transmission for a child outside the bed (38) is shown in Fig. 39, for a child in The bed is shown in Fig. 40. In order to avoid the mutual interference of the individual devices and even in large apartment blocks with e.g. 100 neighboring devices, 100 different transmission frequencies can be provided as a possible solution for these 100 devices. The selectivity of the LW receiver in the signaling part (9000 L), it can be a direct receiver or a super heterodyne, by using the quartz filter, for example three, (Q _z k _e / 1), (Q _z k _e / 2), (Q _z k _e / 5) Fig. 42 are raised so that it is possible to use a transmission frequency spacing f = 10 Hz. Then a width of 100 is required for 100 different transmission frequencies Ban said of only 1 kHz.

The simplified block circuit of the moisture sensor (8000 L) is shown in Fig. 41. This block position consists of the moisture-sensitive sensor NS, the measuring element (811), the electronic switch (812) "Send", the transmission sequence control (870), the oscillator (861) of the transmitter, the transmitter (864). The waterproof button (79), the circuit (800) and the LED (15) are used for battery control. There are 101 transmission channels k _o = 0.1.2, .. 100 (k _o 0 = k _os2 0 ...) with a frequency spacing f = 10 Hz and the transmission frequency f _{o of} the kth channel is f _o k _o =

= f _g + k _o . f where f _g is the transmission frequency of the zeroth channel. Sequence of information transmission with the wet bulb (8000 L) Fig. 41 is the same as with the wet bulb (2000 L) Fig. 13.

The simplified block circuit of the signaling section (9000 L) is shown in Fig. 42. The block circuit consists of the built-in ferrite antenna (56), the three amplifier stages (921/1), (921/2), (921/3) and associated quartz filters (Q _z k _e / 1), (Q _z k _e / 2), (Q _z k _e / 3), the signal rectifier (923) and the whistleblower (980). Corresponding to the transmission channels 101, reception channels k _e = 0 , 1,2, ... 100 with a frequency spacing f = 10 Hz and the reception frequency of the kth. Channel is f _e k _e = f _g + k _e . F where f _g is the frequency of the zero channel k _e O. The information processing of the signaling part (9000 L) is the same as for the signaling part (4000 L), Fig. 14 . Another possibility of distinguishing the LW transmitters in the wetness sensors (8000 L) is a suitable, for example digital coding of their carrier frequencies, such a method is not described here. After the advantages and disadvantages of the transmission of information between the moisture sensor and the signaling part are shown in different bands, some suggestions for practical implementations of such devices are described.

In all of the following examples, an increase in the conductivity of the insert (1) in the moisture-sensitive sensor and in the soaked state is selected for the moisture sensor as a criterion for determining an overflow. The resistance between the measuring electrodes (2a), (2b) of the moisture-sensitive sensor NS is a dry insert (1) R _dry = 1.10 ⁸ ohms, and with a wet insert (1) R _wet = 5.10 ⁴ ohms. Three different versions of the moisture sensor are proposed and described: (1001 U) Fig. 45, sensor (1150 ) Fig. 46, Fig. 47, Fig. 48, moisture sensor (1100 ü) Fig. 49, Fig. 51, moisture sensor (2001 L) Fig. 57, Fig. 58, Fig. 59, these have many common features so that the wetness sensor is described first.

The absorbent material is in the form of a flat insert (1) Fig. 60 and is pressed onto the measuring electrodes (2a) (2b) with a closure (3) Fig. 45, Fig. 46, Fig. 57. The measuring electrodes (2a), (2b) of the moisture-sensitive sensor are either on the upper part (4) of the Body of the moisture sensor Fig. 45, Fig. 57, Fig. 58, Fig. 59, or also spatially separated outside the body of the moisture sensor as in the sensor (1150) Fig. 46, Fig. 47, Fig. 48 and the moisture sensor (1101 U) Fig. 49, Fig. 51 and then they are connected to the measuring element (111) Fig. 44 in the wet bulb (1101 U) Fig. 49, Fig. 51 with a line (26) and a plug (27 S).

The material of the measuring electrodes (2a), (2b) must have such properties or at least such a surface treatment, for example gold-plated, rhodium-plated, that with a wet insert (1) it is not possible for an additional galvanic cell of greater voltage to form between the two contacts Under certain circumstances, the polarity is still the reverse of the polarity of the measuring voltage on the measuring electrodes. The closure (3) is rotatably mounted on the axis (9) Fig.45, Fig.46, Fig.47, Fig.48, Pig.57, Fig.58, Fig.59. The pressure of the closure (3) on the absorbent insert (1) and the measuring electrodes (2a), (2b) can either be operated with a spiral spring (10) Fig.45 Fig.46, Fig.47, Fig.48. or with a holding magnet (46) and a holding plate (45) Fig.57, Fig.58, Fig.59. Accidental removal of the insert (1) from the measuring contacts (2a), (2b) with a closed closure (3) makes it impossible for one or more pins (11/1), (11/2) on the upper part (4) of the body 45, Fig.57, Fig.58, Fig.59 These pins (11/1), (11/2) fall into the openings (48/1), (48/2) Fig. 60 in the insert (1) and in the openings (12/1) (12/2) in the closure (3) Fig. 45, Fig. 57, Fig. 58, Fig. 59. On the upper part (4) of the wet bulb there is also either a waterproof (79) Fig. 57, Fig .58, Fig.59 or normal (13) Fig.49, Fig.51 button and an LED (15) Fig.49, Fig.51, Fig.57, Fig.58, Fig.59 for battery control Space (84) of the wet bulb (1001 U) Fig. 45 of the wet bulb (1101 U) Fig. 49, Fig. 51, of the wet bulb (2001 L) Fig. 57, Fig. 58, Fig. 59 is the electronic part and in the room (6) Fig. 45, Fig. 57, Fig. 58 the batteries. The inner space (84) of the wet bulb (1001 L) Fig. 45 and (2001 L) Fig. 57, Fig. 58, Fig. 59 which are completely in the laundry must be hermetically watertight but the batteries must remain replaceable. It is advantageous if the batteries are located in a space (6) which is completely closed off from the rest of the space (84) in which the electronic part is located, then it is possible to hermetically seal, weld or glue the space (84) (6) is closed with a watertight closure (7) Fig. 45, Fig. 57, Fig. 58, Fig. 59. For the moisture sensor (1101 U) Fig. 49, Fig. 51, which is outside the laundry, there are such Measures are not necessary.

The first proposals are two devices with a range (d ^) of the transmitter in the wet sensor 10m <d ₁ <100m and with information transfer between the wet sensor (1001 U) Fig. 43, Fig. 45 or the wet sensor (1101 U) Fig. 49, Fig. 51, Fig. 44 and the signaling device (3001 U) Fig. 52, Fig. 53 shown and described in the UHF band. In both proposals, one and the same signaling part (3001 U) Fig. 52, Fig. 53 used. In the first crate the wetness sensor (1001 U) Fig. 45 is completely in the baby's laundry; in the second suggestion, only the moisture-sensitive sensor (1150) Fig. 46, Fig. 47, Fig. 48 is in the laundry and the wetness sensor (1101 U) Fig. 49, Fig. 51 is outside of the laundry. In both proposals, the information is broadcast with impulses encoded using the NF selective call method, and in both proposals the block circuit of the wet sensor (1001 U) is shown. 43 and (1101 U) Fig. 44 except for the connection of the measuring electrodes (2a), (2b) the same so that both circuits can be written simultaneously. In the block circuit (1001 U) Fig. 43 and (1101 U) Fig. 44 the conductivity of the insert (1) is monitored with the measuring element (111). With the soaked insert (1) its greater conductivity is measured with the measuring element (111 ) recognized, this actuates the electronic switch (112) "switch on transmitter" and this switches on the supply voltage of the transmission sequence control (173) and the quartz oscillator (161) of the transmitter. The oscillator (161) remains during transmission, taking into account its stability , continuously switched on and controls the frequency multiplier (162) during transmission and this controls the power level (164) of the transmitter pulse and the pause between two adjacent transmission pulses is determined by the asto-stable multivibrator (173) of the transmission sequence control, which actuates an electronic switch (174) and which switches to transmit in pulses the supply voltage of the selective call transmitter (140), the modulator (163) and the The programming block (130) of the selective call transmitter determines the NF signals corresponding to the transmitted coding digits for modulating the transmitter. After removing the soaked insert (1) from the moisture-sensitive sensor, the measuring element (111) is used to reset the electronic switch (112) and the ÜHF transmitter is switched off. In the wet probe (1001 U) Fig. 45, the transmitter antenna (41) is made of wire and can have a sufficiently small crocodile clip to secure it in the laundry on its free end for attachment in the laundry. The dimensions of the moisture sensor (1001 U) Fig. 45 must remain small, no coding switches can be installed to program the selective call transmitter and only hard-wired programming is possible. With the wet sensor (1001 U), the damping of the transmitted signal due to the wet and conductive laundry must be accepted and taken into account. In the second proposal, the moisture sensor (1101 U) Fig. 49, Fig. 51 is located outside the laundry and is in with a mounting bracket (24), a mounting screw (20) and mounting nut (21) a scaffold bracket coupling (17 K) Fig. 50 and this is connected to the thermoplastic rivets (18/1), (18/2) with the carrying strap (19) .The buckle of the carrying strap (19) is (31), ( 32) Fig. 51. This version of the moisture sensor has more available space, it is possible to program the selective call transmitter (140) coding switch (25/1), (25/2), (25/3) Fig. 51 and larger more powerful batteries (55/1), (55/2), (55/3), (55A) Fig. 49. The measuring contacts (2a), (2b) of the moisture-sensitive sensor (1150) Fig. 46, Fig. 47 , Fig.48, Fig.51 are with a line (26), a plug (27 S), a socket (27 B) on the riser (19), the line (29) on the riser (19), the sockets (22 B / a), (22 / B / b), in the coupling (17 K), and the contact pins (22 S / a), (22 S / b) connected to the wet bulb (1101 U) Fig. 51 The UHF transmitter antenna (30) is located on the carrying belt (19) and is connected to the wet sensor (1101 U) with a socket (22 B / c) in the coupling (17 K) and a contact pin (22 S / c) on the body of the wet bulb (1101 U). The wet bulb (1101 U) is carried on the carrying straps 19) Fig. 51 on the front right side of the body and because of the wet sensitive sensor (1150 ) is connected to the electronic part (1101 U) with conductors (26) under the outer clothing of the lindes. Another disadvantage is that as soon as the child begins to move, the conductor connection (26) of the measuring electrodes (2a), (2b) with cause complications to the moisture sensor. The block circuit of the signaling part (3001 U) common to both versions of the moisture sensor (1001 U) or (1101 U) is shown in FIG. 52, its version in FIG. 53. The block circuit consists of a UHF receiver (320), one UHF antenna (42), on the output of the UHF receiver (320) and the terminal (300) the first selective call filter (340/1) is connected. The first selective call filter (340/1) is with the associated programming part (330/1), short-term memory (351/1) and an electronic switch (352/1) on the first. Selective call plate (53/1) Fig. 53. In the signaling part (3001 U) is provided space z. When installing two more selective calls = plates (53/2) (53/3) Fig. 53. for decoding the signals from two further wetness sensors. The second selective call plate (53/2) can be connected to the connection terminals (301), (306), (311), the connection terminals (302), (307), (312) third selective call plate (53/3) can be connected. The LEDs (315/1), (315/2), (315/3) indicate the wet sensor currently sending and receiving. Hard-wired programming of the selective call filter is possible or three programming switches (25/1/1), (25/2/1), (25/3/1) ... up to / to the nth selective call plate (25/1 / n) (25/2 / n), (25/3 / n) installed and used. These are located under a cover plate (81) Fig. 5 so that coding or recoding is possible at any time. Because the break between two received correspond Correspondingly coded transmit pulses can be up to 60 seconds or even longer, the transmit pulses cannot be used directly as trigger signals from the whistleblower but are connected to the selective call gilter (340/1, a short-term memory (351/1) is connected and the received pulse remains until it arrives of the next transmission pulse stored in the short-term memory (351/1). The short-term memory (351/1) actuates the electronic switch (352/1) "switch on the indicator and the LED (315/1)" and this switches the supply voltage of the indicator and the A light-emitting diode (315/1) that just sends the wet sensor. Because of the security of the transmission, the information from the wet sensor must be emitted with an uninterrupted transmission in high-frequency pulses The astable multivibrator (381) determines the length the sound impulses of the acoustic or the light impulses of the optical indication. The A stable multivibrator (382) determines the tone frequency of the acoustic signal and controls the power amplifier (383) with the connected loudspeaker (34). The light source (16) is connected to the power amplifier (384) of the optical signal. With the contact (37 c) of the switch (37) you can choose between the acoustic or the visual indication. The volume control of the acoustic indication is the potentiometer (36) is coupled to the on / off switch, with the contact (44 a) of the button (44) the acoustic signal can be switched to continuous tone to adjust its volume, the resistor R prevents a random adjustment of its volume Zero. The button (13), the circuit (390) and the LED are used to check the battery. Furthermore, four proposals for devices with an information transmission between the wetness sensor and the signaling part in the long-wave range 20-70 kHz, their block circuits and designs are shown and described in more detail than in the introduction.

In the first proposal, the establishment of a range (d,) of the LW transmitter in the wet sensor (2001 L) d ₁ = 0.3 m is described.

The block circuit of the wet bulb (2001 L) is shown in Fig. 54, its design in Fig. 58, Fig. 58, Fig. 59 because the position of the wet bulb (2001 L) in relation to the receiving antenna (40) or (56) Fig .61 must be any number of three transmit sp to generate the signal-transmitting n magnetic fields. uses the (92 X), (92 Y), (92 Z) with mutually perpendicular axes so that in any direction of their axes with respect to the receiving coil at least one transmitting coil in the receiving coil (40) or (56) Fig. 61 a signal voltage Frame transmit coils (92 X), (92 Y), (92 Z) Fi .54 can be used as transmit coils and these are inductances of the resonance circuits which are adjusted to the transmission frequency with the adjustment coils (91 X), (91 Y), 91 Z), or can be cylindrical coils (93 X), (93 Y), (93 Z) as transmission coils An inductor adjustable with a magnetic core can be used. A complete (47) three such cylindrical transmitter coils is shown in Fig. 57, Fig. 58, installed in the wet bulb (2001 L). The transmitter coils are at the same time inductors of the resonant circuits and matched to the transmit frequency The signal-transmitting magnetic field is excited with its circulation currents. As soon as the measuring element (211) of an impregnated insert (1) detects correspondingly higher conductivity between the measuring electrodes (2a), (2b), this actuates the electronic switch (212) and it switches the supply voltage of the transmission sequence control (271), (272) and the LW transmitter (261), (264). The quartz oscillator (261) of the transmitter oscillates after switching on the Spe voltage during the transmission of the high-frequency pulses continuously and controls the output stage (264). The transmission sequence control (271) determines the times and the duration of the excitation of the power amplifier (264) of the transmitter and at each such time actuates one of the electronic switches (272 X), (272 Y), (272 Z) to connect the individual transmitter coils (92 X), (92 Y), (92 Z) to the power amplifier (264) of the LW transmitter. It is in four groups of three next to each other other transmission pulses, as shown in the pulse diagram Fig. 56. During the transmission process, the signal-transmitting magnetic field is excited in each such pulse group with each transmission coil for about 100 msec. It depends on the design of the entire device and the corresponding switching of the transmission sequence control (271) whether only a single pulse group, or whether this pulse group is repeated several times and with a transmission pause of 3 to 60 seconds between the neighboring pulse groups, or whether this pulse group is continuous and with one between the ben. If there is a repeated transmission of the pulse group, the last transmission coil is followed by a pause after excitation and after this the transmission process is repeated, Fig. 56. This proposal includes an uninterrupted transmission of the pulse group a pause of approx. 10 see between two adjacent pulse groups is provided to enable the moisture sensor to be checked by approaching it. Another advantage is that the information received from the moisture sensor is not stored in a memory element with manual emptying in the signaling part is necessary, a self-emptying short-term memory is sufficient. For the construction of the electronic circuit, thin-film technology is advantageous, the circuit is on the substrate surfaces (54/1), (54/2), and (85) Fig.57, Fig.58.

The block circuit of the signaling part (4201 L) is shown in Fig. 61. To the input of the signaling part (4201 L) is an external antenna (40) Fig.10, with a plug (51 S) and a switching socket (51 B) is connected to the receiver in the signaling part. The contact (51 a) of the switching socket (51 B) switches over to the built-in ferrite antenna (56) when the information is transmitted outside the bed (38) and there is no external antenna (40) (51 b) the gain of the amplifier (421) is regulated according to the different sensitivities of the two antennas (40) and (56) so that the signal voltage at the output of the amplifier (421) is always the same size. wi d tuned to the reception frequency with the coil (76). Instead of a built-in ferrite antenna, a frame antenna (39) Fig. 62 can also be installed, this is tuned with the coil (76 / 2c) to the reception frequency. The amplifier (421) is followed by a threshold switch amplifier (422), which only amplifies signals that are larger than the set threshold value, so that the range of the device is limited. If greater selectivity of the LW receiver is necessary, if for information transmission and distinguishing between several wetness sensors several, for example four transmission frequencies are necessary, a quartz filter (Q _e ) can be placed after the amplifier (421) and then the transmission frequencies can have a small spacing and occupy a small width in the band. After the threshold switch amplifier (422) follows the signal rectifier (423), the trigger (481) and this controls the monoflop (482). 482) determines the length of the impulses of the acoustic or visual indication and at the same time turns on the rest of the whistleblower. Because the trigger impulses are derived from the transmission impulses of the wetness sensor (2001 L), the distance between the beginnings of two neighboring indication impulses is equal to the distance between The falling edges of the neighboring pulse groups of the LW transmitter. If the pause between two neighboring transmit pulse groups of the LW transmitter of the wetness sensor (2001 L) with regard to power consumption must be longer, which would lead to a too large gap between the beginnings of the information pulses, the transmit pulses can be performed in one Short-term storage with a storage time longer than that A pause between two neighboring pulse groups can be saved and the short-term memory can be used to operate an astable multivibrator, which then determines the length of the warning pulses and pauses. The astable multivibrator (483) determines the pitch of the acoustic signal and controls the power amplifier (484) with the loudspeaker (34) connected. With the contact (44 <a) of the button (44) the acoustic signal can be switched to continuous tone and It is possible to adjust the volume with the potentiometer (36) regardless of the received signal, the resistor R prevents the volume from being conspicuously set to zero. The potentiometer (36) is combined with the on-off switch. The light source (16) is connected to the power amplifier (485) of the optical signal. The contact (37 c) of the switch (37) can be used to choose between the acoustic or optical signal. The button (13), the circuit (400) and the LED (15) are used to check the battery. The socket (33 B) can be used to connect an additional UHF transmitter (5001 U). If no additional transmitter (5001 U) is connected, the output must be connected of the signal rectifier (423) are connected to the input of the trigger (481) with a wire bridge. An execution of the signaling part (4201 L) is shown in Fig. 63. Most parts are nicely mentioned in the block circuit, (55/1), (55/2), (55/3), (55/4) are the Batteries. The signaling part (4201 L) is interchangeable and can be inserted into the device holder = coupling (86 K) Fig. 31 and with the screws (20/1), (20/2) and the mounting brackets (24/1) , (24/2). A piece of the coupling (86 K) is connected to the carrying belt (19) Fig. 64, Fig. 17 with thermoplastic rivets (18/1), (18/2) and is used as a fastening (7003) Fig. 32 One and the same signaling part can be used to monitor a child in bed or outside the bed. The device holder coupling is such that the signaling part is exchanged between the coupling on the carrying belt (19) and the coupling on the fastening ( 7003) is as simple as possible. It is possible to carry out the attachment, which is referred to as attachment (7004) Fig. 65, so that the monitoring part (4201 L) does not have to be removed from the coupling (86 K) on the carrying belt (19) for monitoring in bed but, kaani together with the carrying strap (19) can be simply inserted into the fastening (7004) Fig. 65. In Fig. 66 the suspension of the buckle (32), in Fig. 67 of the hook (31) on the fastening ( 7004).

Another example of a device holder coupling, which is designated as a coupling (50 K), is shown in Fig. 68. The signaling part (4202 L) has two mounting brackets (24/1), (24/2), in their openings are those The locking pins (57Λ), (57/2) are pressed in by the spiral spring (78/1), (78/2). When the signaling part (4202 L) is removed, the buttons on the locking pins (57/1), (57 / 2) can be locked on the locking brackets (58/1), (58/2) A fastening (7000) Fig. 17 with a built-in device coupling (50 K) which is designated as fastening (7005) is not shown.

With a signaling part (4201 L) removed from the coupling (86 K) Fig. 31, Fig. 32, Fig. 64 or with a signaling part (4202 L) removed from the coupling (50 K) Fig. 68 and an information transmission by approximation of the signaling part (4201 L) or (4202 L) to the wet sensor (2001 L) are the mounting brackets (24/1), (24/2) disturbing. In Fig. 69 is another alternative of the device parenting plug (77 S), Fig. 70 shows the device holder coupling (77 K), Fig. 72 shows the device holder coupling (77 K) assembled with the attachment (7000) Fig. 17 assembled with coupling (77 K) as (7006) Fig. 71 shows the device holder coupling (77 K) - assembled with the carrying strap (19) and with the inserted signaling part (4203 L). The device holder connector (77 S) is located on the rear wall of the Signaling part (4203 L) Fig. 69. Connection of the UHF antenna is on the contact (22 S / a ), the two pins (59 S / a), (59 S / b) are only guide pins that are inserted into the guide openings (59 / Ba) (59 B / b). A signal inserted in the coupling (77 K) tion part (4203 L) is secured in the coupling (77 K) with a locking pin (60) Fig. 70, Fig. 71 which is held in a locking opening (52) Fig. 69 with a spiral spring (61) Fig. 70. When removing the signaling part (4201 L) the locking pin (60) pulled out of the securing openings (52) after turning through an angle which is given with a stop pin (88) section (C - D) Fig. 70 and section (E - F) Fig. 70 is in this Position locked with his button (89) Fig. 70, Fig. 71 and a locking bracket1 (58) Fig. 71. As already mentioned in the introduction, instead of one, two signaling parts (4201 L) or two (4202 L), or two (4203 L) can be used and then one can be permanently on the strap (19) or becomes wearable by the child used and the second is constantly in one. Attachment (700 ..) which is a much more comfortable solution against the constant exchange.

The second proposal briefly describes a version of a wet bulb (2101 L) and a signaling part (4101. L) with information transmission in the LW range 20 -) 0 kHz and a range (d) of the transmitter in the wet bulb d ₁ = 1 m.

The block circuit of the wetness sensor (2101 L) is the same as that of (2001 L) Fig. 54, the block circuit of the signaling part (4101 L) except for the missing external antenna (40) Fig. 10, missing switch socket (51 B) '' missing tuning coil ( 76/1) and a built-in quartz filter (Q _e ) the same as the (4201 L) Fig. 61 and the different part of its block circuit is shown in the signaling part (4100 L) in Fig. 22. The performance of the LW transmitter in the wet sensor (2101 L) and the sensitivity of the LW receiver to the built-in antenna (56) or (39) in the signaling part (41υl L) is increased so that the range (d ₁ ) of the transmitter in the wet bulb (2101 L) is d ₁ = 1 m The wetness sensor (2101 L) is suitable for any version of the signaling part (4201 L), or (4202 L), or (4203 L) with an adapted sensitivity to the built-in antenna (56) or (39) and is then used as a signaling part (4101 L), or (4102 L), or (4103 L). In order to exclude the mutual interference of several neighboring such devices, the measures mentioned in the introduction on pages 20-22 and 19, 20, 21, 22, 23, 24 apply, where the advantages of this solution are sufficient are described.

In the third proposal, an extension of the range (d ₂ ) of the device for a device with information transmission between the wetness sensor and the signaling part in the LW range 20 - 70 kHz by extending the signaling part with an additional UHF transmitter (5001 U) and by expanding the device described with a portable signaling part (3001 U) Fig. 52, Fig. 53 with a built-in UHF receiver.

With the additional UHF transmitter (5001 U) any version of the signaling part (410 .. L), or (420 ..L) can be supplemented with a built-in LW receiver. A combination of the wetness sensor (2001 L) and and a version of the signaling part (420 .. L) with a range (d ₁ ) of the transmitter in the wet sensor d ₁ = 0.3 m and with the external antenna (40) Fig.10 or a combination of the wet sensor (2101 L) and a version of the signaling part (410 ... L) with a range (d ₁ ) of the transmitter in the wet sensor d ₁ = 1 m and without the external antenna (40 Fig. 10 can be used.

The wetness sensor (2001 L) or (2101 L) remains unchanged and its block circuit is shown in Fig. 54, Fig. 55, its execution in Fig. 57, Fig. 58, Fig. 59. Furthermore, an extension of a combination with range (d ₁ ) d ₁ = 0.3 m of a moisture sensor (2001 L) and a signaling part (4201 L) is described.

The block circuit of the signaling part (4201 L) with a connected additional UHF transmitter (5001 U) is shown in Fig. 73.

The additional UHF transmitter (5001 U) is connected to the signaling part (4201 L) with a plug (33 S) and a socket (33 B). The block connection of the signaling part remains unchanged from that in Fig. 61 Key (14) switched on additional UHF transmitter (5001 U), the signal rectifier (423) with the contact (14 b) is connected to the short-term memory (575) Short-term memory (575) is a little longer than the time between the two adjacent transmission pulses of the LW transmitter in the wet sensor. The short-term memory (575) actuates the electronic switch (576), when the transmission pulses arrive and while they are being stored, the electronic switch (576) switches the astable multivibrator (577) of the transmission sequence control and the oscillator (561) of the transmitter. The multivibrator (577) determines the length of the transmitted radio frequency pulses and the pause between two adjacent transmission pulses of the UHF transmitter and switches on the selective call transmitter (540), the frequency multiplier (562), and the modulator (563), block ( 564) is the power level of the UHF transmitter. The programming block (530) can either contain three coding switches (25/1), (25/2), (25/3), which are located under a cover plate (81) Fig. 74 and is then freely programmable, or can have hard-wired programming. After the transmission of the moisture sensor (2001 L) and after the storage time of the short-term memory (575) has ended, the latter is emptied, actuates the electronic switch (576) which switches the UHF transmitter off and the device is ready for a new monitoring Version of the additional UHF transmitter (500L U) is shown in Fig. 74. The additional UHF transmitter (5001 U) is connected to the signaling part (4201 L) Fig. 63 with two screws (85/1), (83/2) Fig. 64, Fig. 74 attached. With a signaling part (4201 L) Fig. 63 which is carried on a carrying strap (19) Fig. 64, the ÜHF transmitting antenna (30) can be located on the carrying strap and is then to the signaling part (4201 L) and the ÜHF additional transmitter (5001 ü) with a contact pin (22 S) Fig. 31, Fig. 64 and a socket (22 B) Fig. 63, Fig. 64. With a signaling part (4201 L) of the attachment (7003) Fig. 32 can be used as UHF transmitter antenna, the built-in rod antenna (42). The possibility of a check with a child outside the bed by approaching the signaling part to the moisture sensor is retained so that the additional UHF transmitter (5001 g) can be switched off with the button (14) and when the additional transmitter is switched off, the signal rectifier (423) is switched with the contact ( 14 b) Fig. 73 reconnected to the trigger (481).

The fourth proposal describes the establishment of a larger range (d ₂ ) when using a moisture sensor with a built-in LW transmitter, a UHF relay transmitter (6001 U) with a built-in LW receiver and either an unchanged or modified signaling part (3001 U). The range (d ₂ ) is 10m <d ₂ <100m. It is also possible here a wet sensor (2001 L) and a relay transmitter (6001 U) with a range (d ₁ ) of the transmitter in the wet sensor d ₁ = 0.3 m or egg nen wetness sensor (2101 L) and a relay transmitter with a higher sensitivity of the LW receiver which is referred to as a relay transmitter (6101 U) and a range (d,) of the transmitter in the wet sensor (2101 L) d ₁ = 1 m and without an external antenna (40 ) to use.

The wetness sensor (2001 L) or (2101 L) remains unchanged, its block circuit is shown in Fig. 54, its execution in Fig. 57, Fig. 58, Fig. 59. The portable signaling part (3001 U) with built-in UHF receiver remains unchanged in one variant, its block circuit is shown in Fig. 52, its execution in Fig. 53.

Use of the unchanged portable signaling part (3001 U) is only possible if information transmission outside the bed (38) is avoided by bringing the signaling part closer to the wetness sensor (2001 L) or (2101 L). But then, even when the child is being monitored outside the bed (38), for example in a stroller, the relay transmitter (6001 U) must be used for information transmission. It is possible to extend the portable signaling part with built-in UHF receiver (3001 U) by an LW receiver and a built-in LW ferrite antenna (56) and with such an extended signaling part, which is referred to as (3101 UL) and its block circuit is shown in Fig .80 is shown ne Information transfer possible by approaching the wet bulb (2001 L) or (2101 L). The block circuit of the UHF relay transmitter (6001 U) is shown in Fig. 75, its execution in Fig. 77, Fig. 78. An example of another embodiment designated as (6002 U) is shown in Fig. 81, Fig. 83. The deviation of the block circuit of the relay transmitter (6101 U) with a higher sensitivity of the LW receiver compared to the (6001 U) is shown in Fig. 76.

When monitoring a child in bed (38) and when using the wet bulb (2001 L) and the relay transmitter (6001 U) with range (d.) Of the transmitter in the wet bulb d ₁ = 0.3 m is to the LW receiver in Relay transmitter, the external antennas (40) Fig. 10 are connected. If there is no external antenna (40), while the child is being monitored outside the bed (38), the LW receiver is connected to the switching socket (51 B) by contact (51 B / a) The built-in LW ferrite antenna is connected, with the contact (51 B / b) the gain of the amplifier (621) is simultaneously changed so that the signal level at its output remains unchanged when it is received on one or the other antenna.

When using a wet bulb (2101 L) and a relay transmitter (6101 U) with a range d ₁ = 1m, only the built-in LW ferrite antenna (56) is connected to the input of the LW receiver (621) External antenna (40) Fig. 10, the switching socket (51 B) and the tuning coil (76) are omitted. The block circuit of the relay transmitter (6101 U) Fig. 76 is the same as the (6001 U) from the input of the amplifier (621) Fig. 75. Further description refers to both the relay transmitter (6001 U) and the relay transmitter (6101 U). If necessary, the LW amplifier can be included in the chain between the output of the LW amplifier (621) and the input of the threshold switch amplifier (622) The threshold switch amplifier (622) amplifies the signal only if it exceeds the certain set value, thus the range (d ₁ ) of the wet bulb (2001 L) or (2101 L) is limited. To the threshold switch amplifier (622) the signal rectifier (623) is connected. The rectified transmit pulses are stored in the short-term memory (675), the storage time is a little longer than the pause between two adjacent transmit pulses. The short-term memory actuates the electronic switch (676) when it enters the transmission impulses and while they are being stored, the electronic viewer (676) switches the astable multivibrator (677) of the Se sequence control and the crystal oscillator (661) of the transmitter. The multivibrator (677) determines the length of the transmit pulses and the length of the pause between two adjacent transmit pulses of the UHF transmitter and switches During the transmission pulses, the selective call transmitter (640), the frequency multiplier (662) and the modulator (663). The block (664) is the power stage of the UHF transmitter. The programming block. (630) of the selective call transmitter (640) can either three coding switches (25/1), (25/2), (25/3) which are located under a cover plate (81) Fig.77, Fig.78, Fig.81 included and is then freely programmable, or can have a hard-wired programming.After removing the wet insert (1) from the moisture-sensitive sensor of the moisture sensor (2001 L) or (2101 L), the LW transmitter in the moisture sensor is switched off after the storage time has expired the short-term memory (675) is emptied, the electronic switch (67 () switches off the UHF transmitter and the device is ready for a new monitoring. The button (13), the circuit (600) and the light-emitting diode (15) are used for battery control The relay transmitter (6001 U) or (6101 U) is switched on and off with the button (67) Fig. 77, Fig. 78.

An embodiment of the relay transmitter is shown in Fig. 77, Fig. 78. The relay transmitter (6101 U) can have the same version as the (6001 U) Fig. 77, Fig. 78, but has no socket (51 B) for connecting the Outdoor antenna installed. A piece of the device holder coupling (80 K) shown in Fig. 79 for installing the relay transmitter (6001 U) or the (6101 U) is with the carrying strap (19) Fig. 77, the second with the attachment (7000) Fig. 17, which is then referred to as attachment (7007) but is not shown, connected with thermoplastic rivets (18/1), (18/2). The relay transmitter (6001 U) or (6101 U) is interchangeable and can be inserted in the first coupling (80 K) on the carrying belt (19 Fig. 78 or in the second coupling (80 K) on the mounting (7007) and with the mounting bracket (24), the screw ((20) and the Mother (21) can be secured so that one and the same relay transmitter (6001 U) or (6101 U) can be used to monitor the child in bed and outside the bed. With a relay transmitter (6001 U) or (6101 U) that is on one If the carrying strap is worn, the ÜHF antenna (30) can be located on the carrying strap (19) and is connected to the relay transmitter with the socket (22 B) in the coupling (80 K) Fig. 78, Fig. 79 and with the contact pin (22 S) connected.

With a relay transmitter (6001 U) or (6101 U) on the mounting (7007), the UHF transmission antenna (42) can be located on the mounting (7007) similar to Fig. 72. Two copies of the relay transmitter (6001 U ) are used, one is then permanently on the carrying belt (19) Fig.78, the other on the attachment (7007), which is a more convenient solution.

When the relay transmitter is designed, which is designated as (6002 U), or as (6102 U) and is shown in Fig. 81, is located on the back of the Ge advises a device holder connector (70 S). The relay transmitter (6002 U) has an identical circuit to the (6001 U), the (6102 U) to the relay transmitter (6101 U) The device holder coupling (70 K) belonging to the device holder connector (70 S) Fig. 81 is shown in Fig. 82. One piece of this coupling (70 K) is with thermoplastic rivets (18/1), (18/2) with the carrying strap (19) Fig. 82, Fig. 83, the second piece is with the Attachment (7000) connected, this is then referred to as attachment (7008), this is not shown. The relay transmitter (6002 ü) or (6102 U) is interchangeable and one and the same device can either be in the coupling (70 K) on the Carrying belt (19) Fig. 82 Fig. 83 or into the coupling (70 K) on the fastening (7008). So one and the same relay transmitter (6002 U) or (6102 U) for monitoring the child in bed or can be used outside the bed.

A relay transmitter plugged into the coupling (70 K) is secured in it with a locking pin (74) Fig. 82, Fig. 83 inserted into the locking opening (75) Fig. 81. The locking pin is in this position with a holding magnet (72 ) Fig. 82 and an adhesive plate (73) Fig. 81 An unsafe, undefined position of the relay transmitter in the coupling (70 K) prevents a flat spring-loaded plug connector (70 S / a.) Inserted in the socket (70 K / a) ) Fig. 81, Fig. 82. On the top of the relay transmitter there is a socket (23 B) Fig. 81, Fig. 83 with a thread for connecting and attaching a flexible ÜHF transmission antenna Fig. 81, Fig. 83. The relay transmitter is switched on with the switch (69) and turned off.

It is also possible to use two copies of a relay transmitter (6002 U) or (6102 U) in one device and one copy is then permanently on the carrying belt (19) and the other permanently on the attachment (7008), which is a more convenient solution is. In the case of a sufficiently small version of a relay transmitter (6002 U) or (6102 U), the device holder plug (70 S) and the device holder coupling (70 K) belonging to it can be dispensed with and this version is used as a relay transmitter (6003 U) and relay transmitter (6103 U). Such a relay transmitter (6003 U) or relay transmitter (6103 U) can be worn outside the bed by the child on the outer clothing or in a pocket of his clothing. The relay transmitter can be used in a child in bed (6103 U), since it does not need an external antenna (40), only be inserted into the mounting (7002) on the bed, similar to the signaling section (4100 L) Fig. 23, Fig. 24. The relay transmitter (6003, U) on the other hand, must be connected in an attachment) 7000) Fig. 17 to an external antenna (40). In the case of a signal transmission between the moisture sensor and the signaling part with a magnetic field and a range d, the LW transmitter d ₁ = 1m, the transmitter and receiver coils can also be reversed; only one can be used to transmit the signal-transmitting magnetic field in the moisture sensor Transmitter coil "ls" are installed in the signaling section, three receiver coils "Lx", "Ly", "Iz" with mutually perpendicular geometric axes "xg", "yg", "zg" are used. A wetness sensor of this type is used as (2201 L), the signaling part designated as (4501 L).

In the signalization part (4501 L) there are two of the reception coils ferrite antennas, "Lx", "ly", and the reception coil "Lz" is a frame antenna Fig. 84. The intersection of the geometric axis "zg" of the coil "Lz" with the The plane in which the geometric axes "xg", "yg" of the coils "Lx", "Ly" lie is at the angle between the two. Ferrite antennas Fig. 84. The advantage of this arrangement of the receiving coils is the possibility of a flat design and also the signaling part can remain flat. The simplified circuit of an input of this signaling part is shown in Fig. 85. The receiving coils "Lx", "Ly", "Lz" If inductors are three resonant circuits at the same time, these have a common tuning capacitor "C." To this capacitor "C" and the receiver (420), the receiving coils are connected during a receiving cycle electronic switches (ch.X), (Sch.Y), (Sch.Z) are connected at a time assigned to only one receiving coil and during a time period (t _e ), a resonance circuit is formed and the receiver (420) is used The receiving cycle is repeated periodically, after the signal voltage has been removed from the last resonant circuit, the signal voltage is again taken from the first resonant circuit. The inductance of the frame antenna "Lz" is matched to the resonance with the deco coil "La". Since a circulating current flows through the receiving coils, it is used as a switch field effect transistors. The LW transmitter in the wet sensor (2201 L) transmits only in pulses for the same reasons as the (2001 L). Fig. 86 shows pulse diagrams of this device. It is assumed that only the geometrical axis "xg" of the receiving coil "Lx" is located against the signal-transmitting magnetic field in such a direction that a signal voltage is induced in it, line: Induced voltage in the coil and cycle. The pulse diagrams also show that during an RF pulse of length "t _s " where the length of an RF pulse "t _s " must be greater than 3 times "t _e " and t _s = 3. t _e , in any direction of the axis of the transmitter coil "Ls "and in any direction of the axes of the receiving coils, at least in one receiving coil and during at least one receiving cycle, a signal voltage is induced. The RF pulse can be off at any time Example of such an RF pulse is in Fig. 86 in the line: RF pulses, it is the nth pulse and this induces a signal voltage in the receive coil "Lx" during the nth and n + 1th receive cycle. The electronic switches are operated by the control (070). This arrangement of the transmitting and receiving coils has the advantage of a simpler transmitter in the wet sensor, only one transmitting coil is necessary, which is important for reasons of space, Fig. 87, Fig. 88, Fig. The transmitter coil can then be a frame antenna (94) Fig. 87, Fig. 88 and it can be tuned to the resonance with a series-connected adjustment coil (95) which can be adjusted with a core (96) Possible cross-section of this frame antenna is given with the longitudinal cross-section of the body of the moisture sensor Fig. 88. A use of a conventional (98) cylindrical coil (97), which can be compared with a core, as the transmitting coil is shown in FIG. 89.

This arrangement of a transmitter coil and three receiver coils can also be used with a relay transmitter. The device described here, which is the subject of this invention, enables immediate detection of urine discharge in infants and young children. Appendix.

The numerical designation of the devices.

The designation of the individual devices or of independent, subordinate functional parts belonging to them consists of a four-digit number and one or two letters: U or L

The letter "U" is assigned to a device with a built-in UHF transmitter or UHF receiver, the letter "L" to a device with a built-in LW transmitter or LW receiver, both letters "UL" to a device with built-in UHF receiver and LW receiver.

The first digit of the four-digit number is assigned to a device type.

1 - Wetness sensor with a built-in UHF transmitter

2 - Wetness sensor with built-in 1Ε transmitter with a range d ₁ = 1 m.

3 - Signaling part with a built-in UHF receiver

4 - Signaling part with a built-in LW receiver with a range d ₁ = 1m.

5 - UHF additional transmitter

6 - UHF relay transmitter

7 - Attaching a signaling part to the bed.

8 - Wetness sensor with a built-in LW transmitter

Range 10m <d ₁ <100m. 9 - Signaling section with a built-in LW receiver and a range of 10m <d ₁ <100 m. If all other digits are zeros, for example (1000 U), it becomes a general, not concrete and only schematic execution of the device type symbolized as an example.

The second digit deviating from zero denotes a mutation of the circuit and the basic version of the device type, for example (2000 L) is a wet sensor with a range d _{1 of} the transmitter d ₁ = 0.3 m and (2100 L) is a wet sensor with a range d ₁ = 1m. The third digit, deviating from zero, denotes an independent functional part belonging to a specific version of a device type and its mutation, for example the moisture-sensitive sensor (1150). The fourth digit zero symbolizes a general, not a concrete and only schematic mechanical design of a device type.

The fourth digit deviating from zero denotes the basic version for a one (1), another number denotes the mutation of the basic version, for example the numerical designation (2001 L) is assigned to a basic version of the wet bulb, (2002 L) one designates its mutation .

Numerical designation of the function blocks. The function blocks are labeled with three-digit numbers.

The first digit designates the membership of the function block to a specific device and is equal to the first digit in the designation of the device type. If the first digit is zero, then it is generally a function block which is specified with the second digit and which can still be added no indication of the device type.

The second digit rejects the higher-level function block.

0 - Battery control circuit

1 - Measuring circuit of the moisture sensor

2 - receiver

3 - Programming part of the selective call

4 - Selective call transmitter or receiver

5 - short-term memory or electronic switch

6 - transmitter

7 - Sequence control of the transmitter

8 - Whistleblower

The third digit denotes the individual function blocks subordinate to the higher-level function block. Input and output signals of the function blocks: The input signals and the connections for supply voltage are located on the left and upper side of the lock. The output signals are on the right and bottom of the block.

Designation and numerical designation of the components. 1 - Absorbent insert 2a, 2b - measuring electrodes

3 - closure

4 - Upper part of the nose probe body

5 - Lower part of the body of the moisture sensor

6 - space for the batteries 7 Cover of the battery compartment 8 - Opening in the lock (3) 9 - Axis of the lock (3) 10- Coil spring for pressing the lock (3) onto the E insert (1) and the measuring electrodes (2a), (2b) 11 / 1.11 / 2 - guide pins for the insert (1) 12 / 1.12 / 2 - openings in the closure (3) for the guide pins 11 / 1.11 / 2. 13 - Button of the battery control 14 - On-off switch of the additional UHF transmitter (5000 U) 15 - LED, indicator of the battery control 16 - Light source of the visual indication 17K coupling for installing the moisture sensor (1100 U) 18 / 1.18 / 2 - Thermoplastic rivets 19 - shoulder strap 20 - fastening screw 21 - fastening nut 22 B / a, 22 B / b, 22 B / c - connection sockets 22 S / a, 22 S / b, 22 S / c - connection pins 24 / 1,24 / 2 - Mounting bracket 25 / 1.25 / 2.25 / 3 - Coding switch of the 1 digit, the

2 digit, the 3 digit 27/1 / 1.25 / 2 / 1.25 / 3/1 - coding switch of the first three-digit number 25/1 / 2.25 / 2 / 2.25 / 3/2 - coding switch of the second three - digit number 26 - connecting cable 27 B - socket for connecting the moisture sensitive sensor 27 S - plug for connecting the moisture-sensitive sensor 28 K - coupling 29 - conductor connection between the socket ") B and the sockets 22 B / a, 22 B / b in the holder 17 K. 30 - UHF transmitting antenna on the carrying belt (19) 31 - Buckle of the carrying strap (19) 32 - Buckle of the carrying strap (19) 33 B - Socket for connecting the additional UHF transmitter (5000 U) 33 S - Plug of the additional UHF transmitter (5000 U) 34 - Loudspeaker for the acoustic signal 35 - Cable clip 36 - Volume control of the acoustic signal coupled with the on - off switch 37 - switch for selecting the acoustic or visual signal 38 - cot 39 - built-in frame reception antenna 40 - frame antenna - outdoor antenna 41 - UHF transmission antenna with wire strand 42 - UHF rod antenna 43 - flexible UHF antenna 44 - Key for switching the acoustic message to

Permanent antenna 45 - adhesive plate 46 - magnetic clamp 47 - assembly of the three cylindrical transmitter coils

(93 X), (93 Y), (93 Z) 48 / 1.48 / 2 - guide openings in the insert (1) 49 - opening for the holding magnet in the insert (1) 50 K - coupling 51 B - switching socket for connecting the external antenna (40) 51 S - connector for the external antenna ( 40) 52 - opening for the safety pin (60) 53/1 - plate for installing the first selective call filter 53/2 - plate for installing the second selective call filter 53/3 - plate for installing the third selective call filter 54 - substrate plate of the thin-film circuit 55/1, 55 / 2.55 / 3.55A - batteries 56 - built-in LW ferrite antenna 57 / 1.57 / 2 - pins for securing the signaling part

(4203 L) in the coupling (50 K) 58 / 1.58 / 2 - securing bracket for the guide pins

(59 S / a), (59 S / b) 60 - pin and button to secure the bracket connector

(77 S) in the coupling (77 K) 61 - coil spring 63 - front part of the fastening (7001) 64 - rear part of the fastening (7001) 65 - elastic material with high coefficient of friction66 - protective caps of the fastening screws 67 - on - off pressure switch of the relay transmitter ( 6002 U) 70 K coupling 70 S - plug part of the device holder 72 - holding magnet 73 - holding plate 74 - button and pin for securing the plug part (70 S) in the coupling (70 K) 75 S - guide pin of the plug part (70 S) 75 B - guide opening in the coupling ( 70 K) 76 - tuning coil of the frame antenna (40) 77 K - coupling 77 S - corner piece of the device holder 78 / 1.78 / 2 - coil spring 79 - waterproof push button 80 K - coupling 81 - cover plate of the coding switch 82 / 1.82 / 2 - mounting holes 83 / 1.83 / 2 - mounting screws 84 - space for electronics 85 - substrate of thin film circuit 86 - coupling 87 - mattress 88 - stop pin 89 - button 90 - open coil generally 91 X, 91 Y, 91 Z - tuning coils of the frame transmission antennas 92 X, 92 Y, 92 Z - frame transmission antennas 93 X, 93 Y, 93 Z - cylindrical transmission coils 94 - frame transmission coil 95 - adjustment coil 96 - Alignment core

97 - cylindrical transmitter coil

98 - Alignment core

Directory of the pictures.

Fig. 1. Basic basic circuit of the device E - receiver M - measuring circuit H - whistle NS - moisture-sensitive sensor

S transmitter

Fig.2.Block circuit of the measuring circuit "M"

011 - measuring circuit 012 - electronic switch

Fig. 3. Basic design of a wet bulb.

Fig. 4. A wet bulb with the closure closed.

Fig. 5. Principle of information transmission from the wet sensor (1000 U) in the UHF band and a child not in bed.

Fig. 6. Principle of information transmission from the wet sensor (1000 U) in the UHF band and a child in bed. 1000 U - wetness sensor with built-in UHF transmitter 3000 U - signaling part with built-in UHF receiver

Fig. 7. Basic block circuit of a wet bulb (1000 U) with built-in UHF transmitter

111 - measuring element 160 - UHF transmitter

112 - electric switch 170 - transmission sequence control 140 - selective call transmitter 100 - battery control

Fig. 8. Basic block circuit of a signaling part (3000 U) with built-in UHF receiver 300 - battery control 320 - UHF receiver 340 - Selective call filter 352 - Electronic switch 351 - Short-term memory 380 - Whistleblower

Fig. 9. Basic design of a portable signaling part (3000 U) with built-in UHF receivers

Fig. 10, example of an embodiment of the frame antenna as an external reception antenna.

Fig. 11 Principle of information transmission from the wetness sensor (2000 L) in the LW area and a child in bed. 2000 L - wetness sensor with built-in LW transmitter 4000 L - signaling part with built-in LW receiver 7000 - fastening of the signaling part (4000 L) to the cot

Fig. 12. Principle of information transfer from the wet bulb (2000 L) in the LW area and a child outside the bed.

Fig. 13. Basic block circuit of the moisture sensor (2000 L) with built-in LW transmitter 200 - battery control 260 - I transmitter

211 - measuring element 270 - transmission sequence control

212 switch

Fig. 14. Basic block circuit of the signaling part (4000 L) with built-in LW receiver 400 - battery control 480 - whistle 420 - LW receiver Fig. 15. Basic design of a signaling part

(4000 L) with built-in LW receiver Fig. 16. Example of a coupling (28 K) for installing the signaling part (4000 L). Fig. 17.Fixing (7000) of the signaling part (4000 L) or a relay transmitter to the cot

Fig. 18.Fixing (700) with built-in coupling (28 K) for installing the signaling part (4000 L)

Fig. 19. Principle of information transmission from the wetness sensor (2100) in the LW area and a child in bed. 2100 L - Wetness sensor with built-in LW transmitter one

Range I m. 4100 L signaling unit with built-in LW receiver with a range of.

Fig. 20. Distribution of the six transmission frequencies, taking into account the exclusion of mutual interference.

Fig. 21. Basic design of a signaling part (4100 L).

Fig. 22. Input circuit of the signaling part (41001).

Fig.23.Signalisation part (4100 L) inserted in the attachment (7002), Anrisε.

Fig. 24. Signaling part (4100 L) inserted in the fastening (7002), look at it.

Fig. 25 Principle of information transmission from the wetness sensor (2000 L) in the LW range and information transmission from the signaling section (4200 L) with an additional UHF transmitter in the UHF range. 2000 L - wetness sensor with built-in LW transmitter 4200 L - signaling part with built-in LW receiver. 5000 U - UHF additional transmitter

Fig. 26. Information transfer as in Fig. 25 and a child outside the bed. Fig. 27 Information transfer as in Fig. 25 and a child in bed.

Fig. 28. Basic block circuit of the signaling part (4200 L) with an additional UHF transmitter (5000 U). 400 - battery control 480 - whistle 420 - LW receiver 5000- ÜHF additional transmitter

Fig. 29 Example of a basic version of the signaling part (4200 L) with additional UHF transmitter (5000 U).

Fig. 30. Basic block circuit of the UHF additional transmitter (5000 U).

540 - selective call transmitter 570 - transmission sequence control 560 - UHF transmitter

Fig. 31 Coupling (86 K) for installing the signaling part (4200 L) on the mounting (7003).

Fig. 32. Attachment (7003) of the signaling part (4200 L) to the cot.

Fig. 33. Principle of information transmission from the moisture sensor (2000 L) in the LW range and from the relay transmitter (6000 U) in the UHF range.

Fig. 34. Information transmission as in Fig. 35 and a child outside the bed.

2000 L - wetness sensor with built-in LW transmitter 3000 U - signaling part with built-in UHF receiver. 6000 U - UHF relay transmitter

Fig. 35. Information transfer as in Fig. 33 and a child in bed.

Fig. 36. Basic block circuit of the UHF relay transmitter (6000 U). 600 - battery control 660 - UHF transmitter 620 - LW receiver 670 - transmission sequence control 640 - selective call transmitter

Fig. 37. Example of a basic version of a relay transmitter (6000 U).

Fig. 38. Basic block circuit of a signaling part (3100 U) with built-in UHF receiver and built-in LW receiver.

300 - Control unit 351 - Short-term memory 320L- LW receiver 352 - Switch 320U- UHF receiver 380 - Signal 340 - Selective call filter

Fig. 39 Principle of information transmission from the wet bulb (8000 L) in the LW range. 8000 L - Wetness sensor with built-in LW transmitter with a range of 10 m <d ₁ <100m 9000 L - Signaling unit with built-in LW receiver with a range of 10m <d ₁ <100 m

Fig. 40. Information transfer as in Fig. 39 and a child in bed.

Fig. 41. Basic block circuit of the wet bulb (8000 L) with built-in LW transmitter. 800 - Battery control 861 - Transmitter oscillator

811 - measuring circuit 864 - LW transmitter

812 - Switch 870 - Transmission sequence control Fig. 42. Basic block circuit of the signaling section

(9000 L) with built-in LW receiver

921/1 - amplifier 923 - signal rectifier 912/2 - amplifier 922 - threshold switch 921/3 - amplifier and amplifier

980 - Whistleblower Fig. 43. Block circuit of the moisture sensor (1001 U) with built-in UHF transmitter 100 - battery control 173 - astable multivibrator

111 - Measuring element of the transmission control

112 - switch 174 - electronic switch 130 - programming of the 161 - quartz oscillator

Selective call 163 modulator

164 - transmitter output stage

Fig. 44. Block connection of the connection of the moisture-sensitive sensor (1150) and the transmission antenna (30) to the moisture sensor (1101 U) with built-in UHF transmitter Fig. 45. Example of a version of a wet sensor (1001 U) with built-in UHF transmitter.

Fig. 46 An embodiment of the moisture-sensitive sensor (1150).

Fig. 47. Wet sensor (1150), top view.

Fig. 48. Moisture-sensitive sensor (1150), view in viewing direction AA.

Fig. 49.Example of a version of the wet bulb (1101 U) with built-in UHF transmitter.

Fig. 50. Coupling (17 K) for installing the moisture sensor (1101 U) on the carrying belt (19).

Fig. 51 Assembling the moisture sensor (1101 U) with the carrying strap (19) and the moisture-sensitive sensor (1150). Fig. 52.Block circuit of the signaling part (3001 U) with built-in UHF receiver.

390 - battery control 351 - short-term memory 320 - UHF receiver 352 - electronic switch 330 - programming 381 - astable multivibrades selective caller of the signaling device 340 - selective call filter 382 - astable multivibrator 383 - amplifier of the ac of the opt.

Notice

Fig. 53.Example of a version of the signaling part (3001 U) with built-in UHF receiver

Fig. 54 Block circuit of the wetness sensor (2001 L) with built-in LW transmitter. 200 - battery control 264 - LW transmitter

211 - Measuring element 271 - Transmission sequence control

212 - electrical switch 272 - electrical switch 261 - quartz oscillator

Fig. 55. An alternative to the wet bulb (2001 L) with cylindrical transmitter coils. Fig. 56. Pulse diagrams of the excitation of the transmitter coils and the magnetic field in the wet bulb (2001 L). Fig. 57. Example of a version of the wet bulb (2001 L). Fig. 58. Wet sensor (2001 L) with closed closure. Fig. 59. Wetness sensor (2001 L), top view. Fig. 60. Absorbent insert. Fig.6I.Block circuit of the signaling part (4001 L) with built-in LW receiver. 421 - signal amplifier 482 - monoflop of the note

422 - Threshold switch- 483 - Multivibrator of the acute and amplifier information

423 - signal rectifier 484 - final stage of the ac.Note, 481 - trigger stage 485 - final stage of the opt. 400 - battery control

Fig. 62. An alternative to the signaling part (4001 L) with built-in frame antenna

Fig. 63.Example of a version of the signaling part (4201 L) with built-in LW receiver.

Fig. 64. Assembling the signaling part (4201 L) with the coupling (86 K) and the carrying belt (19).

Fig. 65.Fixing (7004) of the signaling part (4201 L) installed on the carrying belt (19).

Fig. 66. Suspension of the shoulder strap (19) on the attachment (7004), the left part.

Fig. 67. Suspension of the 'belt (19) on the attachment (7004), the right part.

Fig. 68.Example of another coupling (50 K) for installing the signaling part (.4202 L).

Fig. 69.Example of a further version of the signaling part (4203 L) with built-in LW receiver.

Fig. 70. Coupling (77 K) for juinbau the signaling part (4203 L).

Fig. 71. Signaling part (4203 L) installed in the coupling

(77 &) and these assembled with the carrying strap (19).

Fig. 72. Coupling (77 K) assembled with the attachment (7006) of the signaling part to the bed. Fig. 73. Block circuit of the signaling part (42u1 L) with built-in LW receiver and the additional UHF transmitter

(5001 U).

400 - Battery control 530 - Programming the

421 - Bignai amplifier selective call transmitter

422 - Threshold switch 54ü - Selective call transmitter amplifier 561 - Quartz oscillator

423 - Signal rectification. 562 - Freq. Multiplier

481 - Triggerszufe 563 - modulator

482 - Monoflop of the Hin564 - transmitter power stage weisgeber 576 - electronic

483 - Multivibrator of the 575 - Short-term memory acousto Note 577 - Multivibrator of the

484 - Amplifier of the transmission sequence control acoustic information

485 - amplifier of the optical information Fig. 74. Example of a version of a UHF additional transmitter

(5001 U). Fig. 75 Block circuit of the UHF relay transmitter (6001 U).

600 -battery control 661 - quartz oscillator

621 - signal amplifier 662 - frequency multiplier

622 - Threshold switch 663 - Modulator ter amplifier 664 - Transmitter output stage

623 - Signal rectification. 675 - short-term memory 630 - programming of the 676 - electronic switch

Selective call transmitter 677 - Multivibrator of the 640 - Selective call transmitter transmit sequence control Fig. 76. Block circuit of the UHF relay transmitter (6101 U) with a range d _{1 of} the LW receiver d ₁ = 1 m. The designation of the blocks is the same as in Fig. 75.

Fig. 77. Implementation of the UHF relay transmitter (6001 U).

Fig. 78.UHF relay transmitter (6001 U) installed in the coupling (80 K) on the carrying belt (19)

Fig. 79. Coupling (80 K) for attaching the UHF relay transmitter (6001 U) to the riser.

Fig. 80. Signaling part (3101 UL) with a built-in UHF receiver and a built-in LW receiver. 320L- IW receiver 352 - electronic switch 320U- UHF receiver 381 - multivibrator of the 330 - programming of the whistleblower

Selective call filter 382 - Multivibrator of the 340 - Selective call filter acoustical information 351 - Short-term memory 333 - Amplifier ak.Ninw. 390 - battery control 384 - amplifier) pt.

Fig. 81.Example of another version of the relay transmitter (6002 U).

Fig. 82. Coupling (70 K) for installing the relay transmitter (6002 U) on the riser.

Fig. 83.Relais transmitter (6002 U) installed in the coupling (70 K) on the carrying belt (19).

Fig. 84. Classification of the two receiving coils with ferrite cores and the frame antenna.

Fig. 85.Scheme of the input circuit with three receiving coils of an LW receiver. Fig. 86. Pulse diagrams of the input circuit of Fig. 85. Fig. 87. Example of a version of a wet bulb (2201 L) with built-in LW transmitter with nu. a transmitter coil Fig. 88. Section E - H and top view of the wet bulb

(2201 L). Fig. 89.Example of a version of a wet bulb (2301 L) with built-in LW transmitter and a cylindrical one

Transmitter coil.

Claims

A facility for instant urine leak detection in infants and young children.

1. A device for the immediate detection of the urine outflow in infants and toddlers is characterized in that this device consists of two main parts, an electronic moisture sensor with a moisture-sensitive sensor and a signaling part, the moisture sensor or at least its moisture-sensitive sensor being in the laundry For example, in the diapers of infants or toddlers in such a place that, taking advantage of the electrical properties of the urine, it is possible to determine the outflow of water with the wet bulb and then convey this information to the signaling part, this signaling part is located in an accessible place and signals the urine outflow in the infant or toddler optically or acoustically or with both types of signaling.

2. A device according to claim (1), characterized in that the moisture-sensitive sensor of the moisture sensor is located on one of the surfaces of the body in which the electronic part of the moisture sensor is installed.

3. A device according to claim (1), characterized in that the moisture sensitive sensor of the moisture sensor is separated from the body in which the electronic part of the moisture sensor is located and and is connected to the electronic part with a line.

4. A device according to claim (1), characterized in that the space in which the electronic free of the moisture sensor is hermetically welded or taped.

5. A device according to claim (1). characterized in that the electronic part of the moisture sensor is installed together with the signaling part in a housing and the moisture-sensitive sensor is connected to the electronic part of the moisture sensor with a line.

6. A device according to claim (1), characterized in that the information is transmitted from the moisture sensor in the Signalisatioteil with a line.

7. A device according to claim (1) characterized in that a transmitter is installed in the body of the moisture sensor and the information from the moisture sensor is wirelessly transmitted to a receiver of the signaling part.

8. A device according to claim (1), characterized in that the information from the moisture sensor is first transmitted wirelessly to a receiver of a relay transmitter in the immediate vicinity and then transmitted with this transmitter to a receiver of a removable signaling part.

9. A device according to claim (1) (8), characterized in that the receiver of a non-removable signaling part in the immediate vicinity is used as the receiver of the relay transmitter and the relay transmitter is designed as an additional transmitter to the non-removable signaling part so that an existing device is also on an information transmission in a removable signaling part can be subsequently expanded with an additional transmitter.

10.A device according to claim (1) (7) (8), characterized in that the information from the moisture sensor is transmitted with a continuous transmission in high-frequency pulses or a transmission of several but at least one high-frequency pulse.

11. A device according to claim (1) (7) (8) (10), characterized in that the information emitted from the moisture sensor is first stored in the signaling part or in the relay transmitter after its reception and then initiates the further process.

12.A device according to claim (1) (7) (8) (10), characterized in that the information emitted with a continuous transmission in HF pulses from the moisture sensor after it is received in the signaling part or in the relay transmitter first in a short-term memory with Storage time longer than the pause between two neighboring ones Impulses are stored and then the further process is carried out.

13.A device according to claim (1) (7) (8) (10), characterized in that with the removal of the wet insert from the moisture-sensitive sensor of the moisture sensor, the electronic part of the moisture sensor is reset and is then in a state of one new monitoring is necessary.

14. A device according to claim (1) (7) (8) (10) (12), characterized in that after the transmission of the wet bulb has ended and the short-term memory has been emptied, the signaling part and the relay transmitter are brought into a state of reception and signaling or transmission of further information from the moisture sensor is necessary.

15. A device according to claim (1) (7) (8), characterized in that in the case of wireless transmission of the information from the wetness sensor to distinguish the signals from a plurality of wetness sensors, their signals are of different transmission frequency.

16. A device according to claim (1) (7) (8), characterized in that when the information is wirelessly transmitted from the wet probe to distinguish the signals from several wet probes, their carrier frequencies are modulated with a low-frequency code.

17. A device according to claim (1) (7) (8), characterized in that with a wireless transmission The information from the wetness sensor to distinguish the signals from several wetness sensors are encoded in a digital code.

18.A device according to claim (1) (15) (16) (17), characterized in that a signaling part for receiving the coded signals of the moisture sensor is designed to receive and decode the signals from several moisture sensors with different transmission frequencies or with a low frequency code or with a Digital code are encoded.

19. A device according to claim (1) (18), characterized in that the moisture sensor currently transmitting and receiving is indicated with an optical signaling element.

20.A device according to claim (1) (19), characterized in that the optical signaling element is a light source.

21. A device according to claim (1) (7) (8), characterized in that for the wireless transmission of the information from the moisture sensor, a signal transmission is used exclusively with a magnetic field and this magnetic field is excited with at least one transmitter coil.

22.A device according to claim (1) (21), characterized in that the signal-transmitting magnetic fields are excited with three but at least two visual coils mutually perpendicular axes.

23.A device according to claim (1) (21) (22), characterized in that the information from the moisture sensor is emitted in the form of several but at least one group of at least two radio frequency pulses lying close together and in each group of such radio frequency pulses the signal-transmitting magnetic Fields from each transmitter coil are excited at least once.

24. A device according to claim (1) (21) characterized in that the transmitter coils are air tubes and the inductance of each coil can be adjusted with an adjustable coil with a magnetic core.

25. A device according to claim (1) (21), characterized in that the transmitter coils with magnetic cores are tunable solenoids.

26.A device according to claim (1) (21), characterized in that the receiving coil is a large-area air coil located under the child.

27. A device according to claim (1) (26), characterized in that the inductance of this air coil is matched to a coil which is adjustable with it in series and has a magnetic core.

28. A device according to claim (1) (21) characterized in that the receiving coils are in the signaling part and in the relay of the frame antennas and their inductances are with each in series ligender adjustable with magnetic core adjustable coil.

29. A device according to claim (1) (21) (26) (27) (28), characterized in that the receiving coil can be switched over to a receiver between the outside receiving coil and the built-in receiving coil.

30. A device according to claim (1) (29), characterized in that the outside receiving coil is connected to the receiver with a switching socket ^ so that when the outside receiving coil is missing, the built-in receiving coil is connected to the receiver.

31.A device according to claim (1) (21), characterized in that the information from the wetness sensor is emitted with a continuous transmission of high-frequency pulses, so that reception and control of the sensor at any time also by approaching the receiver coil built into the signaling part to the wetness sensor is possible.

32. A device according to claim (1) (8) (19), characterized in that the transmission of the information from the relay transmitter or from the additional transmitter is carried out with continuous transmission or by the end of several but at least one high-frequency pulse.

33.A device according to claim (1) (32), characterized in that the information from the relay transmitter or additional transmitter is stored after receipt in the signaling part and then initiates the further process.

34.A device according to claim (1) (32), characterized in that the information from the relay transmitter or from the additional transmitter after its reception with the signaling part is first stored in a short-term memory with a storage time longer than the pause between two adjacent transmission pulses and then the load further process.

35.A device according to claim (1) (34), characterized in that after the transmission of the relay transmitter or the additional transmitter has ended and after the short-term memory has been emptied, the electronic part of the signaling part is in a state in which it is ready to receive and process further information from the relay or additional transmitter is necessary.

36. A device according to claim (1) (8) (9), characterized in that to distinguish the signals from several relay or auxiliary transmitters, these are different transmission frequencies.

37. A device according to claim (1) (8) (9), characterized in that to differentiate the signals from several relay or additional transmitters, their transmission frequencies are encoded with a low frequency code.

38. A device according to claim (1) (8) (9) characterized in that to distinguish the signals from several relays or additional transmitters, their transmission frequencies are encoded in a digital code.

39. A device according to claim (1) (36) (37) (38), characterized in that a signaling part for receiving and decoding the signals from the relay or additional transmitter is designed to receive and decode the signals from several relay or additional transmitters which have different transmission frequencies or their transmission frequencies are encoded in a low frequency code or in a digital code.

40. A device according to claim (1) (39), characterized in that the relay or additional transmitter currently transmitting and receiving is indicated with an optical display element assigned to it.

41. A device according to claim (1) (40), characterized in that the optical display element is a light-emitting diode or an incandescent lamp.

42.A device according to claim (1), characterized in that the acoustic indication of a signaling part also with a switch in it regardless of the signal of the wet bulb or the relay or additional. which can be switched on so that its volume can be adjusted at any time,

43.A device according to claim (1) (7) (8) characterized in that in the portable and removable signaling part except for the antenna and the receiver for receiving the signals of the relay

or additional transmitter, an antenna and a receiver for the direct reception of the signals from the moisture sensor are also built in, so that by approaching the signaling part and this antenna to the moisture sensor, it is also possible to receive its signals directly and to control the sensor.

44. A device according to claim (1), characterized in that the signaling part or the relay transmitter or the additional transmitter are located on a wall of the cot.

45. A device according to claim (1), characterized in that the signaling part or the relay transmitter is worn by the child on his clothing.

46. A device according to godfather claim (l) (45), characterized in that the signaling part or the relay transmitter for fastening to the clothing has at least one safety pin on its housing.

47. A device according to claim (1), characterized in that the signaling device or the relay transmitter is carried in a pocket of the child's clothing.

48.A device according to claim (1) (45), characterized in that the signaling part or the relay transmitter is carried by the child on a carrying belt.

49. A device according to claim (1) (8) (9), characterized in that the transmitting antenna of the relay or additional transmitter is a flexible design so that no injury is possible.

50.A device according to claim (1) (8) (9) (48), characterized in that the transmitting antenna of the relay or additional transmitter is located on the carrying belt and is connected to the transmitter with a separable, for example plug or pressure connection.

51. A device according to claim (1) (21), characterized in that three receiving coils of mutually perpendicular geometric axes are used to receive the signal-transmitting magnetic field of the moisture sensor.

52. A device according to claim (1) (21) (51), characterized in that two receiving coils are coils with ferrite cores and the third receiving coil is a frame antenna.

53. A device according to claim (1) (21) (52), characterized in that the intersection of the geometric axis of the frame antenna with the plane in which the geometric axes of both ferrite coils lie lies in the angle between the two ferrite coils.

54. A device according to claim (1) (15), characterized in that the oscillator quartz is separate from the other electronic parts in a separate room and this space is hermetically sealed bar, the oscillator quartz is pluggable and exchangeable from the outside without opening the space for the electronic part and is located on the front of the body of the moisture sensor.

55. A device according to claim (1) (21), characterized in that the signal-transmitting magnetic field is excited with the circulation flow of a resonant circuit tuned to the transmission frequency.

56. A device according to claim (1) (10), characterized in that an indication is given with the signaling part only after receipt of a certain number of transmission pulses from the moisture sensor.

57. A device according to claim (1) (56), characterized in that the length of the number of transmission pulses necessary for receiving and triggering an indication is more than 30 seconds.

58. A device according to claim (1) (10), characterized in that the added time length "t _s " of the individual transmission pulses and the time lengths "t _p " of the pauses between two adjacent transmission pulses or also pulse groups with pulse pulses are determined by which length a frequency division of the frequency, or also derived from a payment of frequency periods or pulses thus derived from the frequency of the crystal oscillator of the transmitter.

59.A device according to claim (1) (21) (51), characterized in that during a cycle which is referred to as a receive cycle and a length is where a reception cycle "t _ez "

consists of a number "n" of the reception times "t _e " of reception with the individual reception coils and a number "n" of the time periods "t _oe " without reception between two adjacent reception times "t _e ", each reception coil at least once during one of them assigned reception time "t _e " is connected to the receiver with an electronic switch and this reception cycle is repeated periodically, after switching on the last reception coil, the first reception coil is connected to the receiver again, so that the space outside the time "t _oe " without Reception is continuously monitored for the presence of a signal with any direction of propagation of the signal-transmitting magnetic field.

60. A device according to claim (1) (10) (21) (51) (59), characterized in that the length "t _s " of a transmission pulse is greater but at least equal to the length "t _ez " of the longest reception cycle.

61. A device according to claim (1) (10) (21) (51), characterized in that in order to differentiate between several devices located in the vicinity, each device is designated with its own code word consisting of letters or numbers or both symbols, such a code word Codeword with several closely located modulated with LF signals

HF pulses each with a length t _s ≧ t _ez , with a

Transmit pulse group of the transmitter in the wet bulb is transmitted with each such RF pulse, only one code element either a number or a letter of the code word is transmitted as an NF modulation corresponding to the code used, so that the number of modulated RF pulses of such a pulse group corresponds at least to the number of digits of the code word.

62. A device according to claim (1) (18), characterized in that in the case of a plurality of moisture sensors, each with its own code word, which are received with one and the same signaling part, their code names differ from one another only in one code element at one and the same place in the code name.

63. A device according to claim (1) (62), characterized in that in a code designation this position is the last position.

64. A device according to claim (1) (15) (18), characterized in that when only one signaling part is used to monitor several wetness sensors of different transmission frequencies, the signaling part of the transmission channel of each wetness sensor is only monitored for short periods of time and the receiver of the signaling part is opened the individual transmission channels that are monitored are switched cyclically.

65. A device according to claim (1) (64), characterized in that with a superheterodyne as the receiver of the signaling part, only the frequency of the oscillator, for example its frequency-determining crystals, is switched over.