Products

A prototype for the complete baby monitoring solution – MonBaby3.0

We are excited to try a fresh from the mill prototype for the complete baby monitoring solution including audio, video and movement monitors combined into one stream of data. Please check out the video below:

Here is the graphical design for the MonBaby 3.0 enclosure:

Assem1

Keep your eye peeled for more updates!

Read More

Using autocorrelation model for breath detection

We have noticed markable improvements in breath detection in accelerometer signal when we tested autocorrelation model. It’s similar to autoregressive (AR) model, but in this article we call this model autocorrelation.

The autocorrelation is defined as:

Screen Shot 2018-02-14 at 9.17.52 PM

 

Where N is the total window size, N win is the AR window size, i is the AR shift, and Ncor is the number of steps.

In tests we have noticed that autocorrelation works a lot better than other methods, including FFT., though it requires significant calibration and tuning. See the graphs with different breathing states below.

Screen Shot 2018-02-14 at 9.25.14 PM

Screen Shot 2018-02-14 at 9.25.22 PM

Screen Shot 2018-02-14 at 9.25.35 PM

 

The final plot depicted below is the result of running breath detection using autocorrelation on live production data collected from one of our customers baby,

The three colored axis show row accelerometer signal and the dotted line shows detected breath in breaths per minute. The bottom graph shows state enumeration with different movement classification states detected. A thing to note that no-breath detection is corresponds to flag=-2, which is an alarming condition to alert parents. In the sample below, the alarm have not been detected.

Screen Shot 2018-02-14 at 9.04.59 PM

Read More

The MonBaby in Forbes!

https://www.forbes.com/sites/larrymyler/2017/10/16/b2b-strategies-can-help-b2c-companies-expand-sales/#2e8b112a19ba

Read More

The article in Entrepreneur magazine about MonBaby

https://www.entrepreneur.com/article/302205#

 

Read More

Working on enhanced breathing algorithm

This is article covers an ongoing work on enhanced breathing algorithm for the MonBaby smart movement baby monitor. It utilizes a research framework pipeline, which is in essence a simplified MonBaby app.

  • The MonBaby smart button with latest MonBaby firmware
  • The test android app based on monbaby_sdk: https://github.com/varturas/monbaby_sdk
  • The python server running in a virtual environment with plugins to test different algorithm implementations

The MonBaby firmware sends XYZ accelerometer signals with sequence numbers to an Android app. Android app streams the accelerometer data stream via TCP socket to a server listening on an open IP port. An IP port is configured via the app UI.

Once data is consumed it could processed via the algorithm in near real time or saved to disc for further processing.

Here is an example of collected raw data visualized on jupyter python notebook. The data was recorded on a adult subject belly breathing:

  • initial normal (about 0.2Hz) breathing
  • followed by 20 second interruption in breathing, where subject was holding breath
  • followed by another breathing interval, where subject was catching the breath
  • followed by placement of the MonBaby button on a static surface
  • finally by an interval where the MonBaby is at rest

bokeh_plot

Here is the same data passed through IR lowpass filter:

bokeh_plot (1)

One can clearly see with the naked eye oscillation intervals of breathing and no breathing.

Here is an output of one of the test algorithms. Algorithm consist of an actual breathing rate detection and a classifier that uses output of breath rate detection to differentiate breathing from no-breathing.

The breathing rate detection finds leading frequency in the signal. For example, this is the graph of a filtered raw signal and a a candidate for a signal frequency.

raw_vs_signal

Breathing rate is calculated within the data interval of 15 seconds by choosing the frequency that fits the data best. This is done via FFT: D=fft(d), where d is filtered signal, then finding reverse frequency component in time-domain x=ifft(D(freq)) and finding most optimal solution to quadratic expansion of the signal y=c0+c1*x+c2*x*x. The most optimal solution can be solved via least-square method with minimal normalized standard error, NMSE = (y-d)^2/d^2.

Classifier is a second stage of the algorithm that finds best fitting parameters of the model based on the output of the breathing rate detection algorithm. The plot below is the output of the classifier that uses a function of coefficients of quadratic expansion, c0,c1 and c2 to determine goodness of fit. Black points are breathing frequency output that has passed through classifier and have been identified as breathing.

bokeh_plot (2)

One can see that generally the classifier and the algorithm output have a good correlation with the actual signal and noise, but not lined up ideally. This is work in progress and subject to improvement.

In comparison, the plot below is based on the classifier that uses NMSE, rather than coefficients.

rate_plot_nmse

The plot shows similar results but with greater variance of the rate value.

Read More

Launching the MonZzz – shockingly smart snoring air wearable

 

 

We are  starting a new product campaign on Indiegogo for the MonZzz – shockingly smart snoring aid wearable. It saves your relationships from snoring. Above is a video link, check it out, it’s pretty funny!

We also start a thunderclap.it campaign. It’s a free way to support the start of the campaign. In two weeks, thunderclap will simultaneosly send facebook and twitter messages. But for this we need to collect 250 votes. Please go here https://www.thunderclap.it/projects/59280-say-bye-to-snoring and click on facebook and twitter support buttons.

Read More

Mondevices @ CE week NYC 2017

Mondevices has exhibited at CE week in New York city. It was even more successful than last year, with more exhibitors, more visitors and more interest. We also got filmed by CBS, see below.

Here are some highlights in pictures:

IMG_2909IMG_2933

IMG_2934IMG_3028

 

CBS is filming our booth

IMG_2961IMG_2980

 

IMG_2992IMG_3043

 

IMG_3073IMG_3034

Read More

Fox and Friends segment about the MonBaby

http://video.foxnews.com/v/5475031826001/?playlist_id=930909787001

Read More

Mondevices went to NY baby show

Mondevices team went to NYC baby show, the biggest baby show in US. We were also picked for Fox and Friends baby product showcase. We got other media coverage, links to the videos will follow shortly.

IMG_4623

Read More

Measurements of BLE signal indoors

Measurements of BLE signal strength (RSSI) dependency on the range indoors

 

Introduction

There is not much results of Bluetooth Low Energy range measurements to be found on the web. The primary reason is that it’s hard to control for environment, wall and floor materials. That being said, the numerous use cases for Bluetooth LE, from now on BLE, exactly in that type of environment, indoors. We, at Mondevices, decided to fill that gap.

 

Description of Setup

We took various BLE devices that transmit packets about 10 times per second and varied antenna designs. Most of PCBs were based on TI chip CC254x family. We have also included a combination of CC2541 with a power amplifier CC2590 and also used Texas instrument RF Studio with a mounted antenna. Below is a detailed description of the devices used.

  • CC2590 Wire = CC2541/CC2590 with 30.6mm wire antenna perpendicular to the PCB, TX power set to +10dBm see attachment CC2590_WIRE.jpg
  • CC2590_MIFA = CC2541/CC2590 with MIFA wire antenna, TX power set to +10dBm, see attachment CC2590_MIFA
  • TI_DEV = Texas Instrument evaluation module with CC2540, TX power set to +4dBm, see attachment TI_DEV.jpg
  • DI_POLE2 = Your prototype di-pole antenna PCB, TX power set to +4dBm, see attachment DI_POLE2.jpg
  • MollyCHIP1 = Standard monBaby PCB with standard chip antenna, TX power set to +4dBm, see attachment Standard_monBaby.jpg
  • WIRE = Standard monBaby PCB with 30.6mm WIRE antenna perpendicular to PCB, TX power set to +4dBm, see attachment monBaby_WIRE.jpg
Name UUID Description
CC2590 MIFA 68:9e:19:18:7a:a0 CC2541+CC2590 amplifier using MIFA antenna
WIRE 20:91:48:4c:9b:c5 CC2540 with vertical 1/4 wave-length antenna
NoBattery b4:99:4c:74:d6:99 CC2540 with chip antenna and battery removed
CC2590 Wire 68:9e:19:18:83:f7 CC2541+CC2590 amplifier using wire antenna
TiDev b4:99:4c:64:69:26 TI Smart RF development kit antenna
Roach1 b4:99:4c:74:e8:c5 CC2540 with wire antenna bent like roach antenna
Wire3Coil b4:99:4c:74:c5:92 CC2540 with wire coiled around circular enclosure
NoBattery b4:99:4c:74:d6:99 CC2540 with battery far away from PCB
Molex Antenna b4:99:4c:74:e4:8d CC2540 with Molex spiral antenna
Roach2 b4:99:4c:74:b7:d5 Roach 2 has antenna bent close to PCB
MIFA b4:99:4c:74:ef:0a CC2540 (inverse F) MIFA antenna in the enclosure
CHIP2Louise b4:99:4c:74:b2:89 CC2540 chip antenna called Louise in the enclosure
CHIP1Molly 20:91:48:4c:a3:8a CC2540 chip antenna called Molly in the enclosure

We have tried to find the best performing devices that could operate at furthers distances from the office and keep steady connection. We have found that TI RF Dev Kit and CC2590 booster are consistently perform better than other devices. TI Dev Kit has a large wave-length antenna and CC2590 boosts power transmission to 10 dbm, which is 4 times more than current chip antenna at 4 dbm setting or 8-9 times better than CC2541 0 dbm setting.

 

The photo of BLE range test setup describes positioning of all the test devices.

 

We tried all different combinations of antenna while trying to stay as close to same technology stack of TI CC254x family.

IMG_3815

The close up of PCB with 1/4 wire antenna, CC2590 combo with MIFA and wire antenna.

IMG_3817

Measurements

We have conducted measurement of RSSI strength of advertising packets of all 13 devices using TI Smart RF packet sniffer. We stored the results and parsed them with our custom parser script written in python. The results are attached as plots and tables.

Results

We did several measurements starting within in the same room in the office confines, then outside in the most RF challenging area of the kitchen and outside in the long corridor. The results of RSSI strength measurements of advertising packets are shown below. To avoid clatter on graphs we only display top three and top bottom plots. The tables shows stats for all

the devices. The kitchen area is very typical to every office and home, with metal surfaces of refrigerator, fax and printer machines and surrounding offices with BLE speakers, wearables and printers. Metal surfaces create destructive interference, where BLE signal interfere with itself. Other electronic devices create electromagnetic RF interferences. We counted around 200 BLE devices sending advertisement packets.

In the same room

In the office, same room where we placed all the devices, we can detect all the signals. This is an expected and obvious result. What is interesting that the biggest RSSI values we get from TI Dev Kit, CC2590 booster combo and, most surprising, just a simple vertical 1/4 wave length antenna positioned perpendicular to the PCB plane

InOffice

The table below shows the stats for all the devices, not just top and bottom three. As one can see devices with power booster, CC2590, shows consistently on top.

UUID Alias MeanRSSI StdDevRSSI VarianceRSSI MinRSSI MaxRSSI Count FCSerrors FCSerror%
68:9e:19:18:83:f7 CC2590 Wire

-37.58

2.86

8.16

-50

-33

187

0

0

68:9e:19:18:7a:a0 CC2590 MIFA

-34.21

3.45

11.9

-47

-30

187

0

0

b4:99:4c:74:e8:c5 Roach1

-44.31

2.95

8.72

-55

-40

186

0

0

20:91:48:4c:a3:8a CHIP1Molly

-55.22

2.98

8.87

-66

-51

186

2

1.08

b4:99:4c:64:69:26 TiDev

-42.95

3.27

10.71

-54

-38

185

0

0

20:91:48:4c:9b:c5 WIRE

-42.48

3.34

11.17

-54

-36

185

0

0

b4:99:4c:74:b7:d5 Roach2

-57.35

3.13

9.78

-68

-50

176

6

3.41

b4:99:4c:74:e4:8d Molex Ant

-58.27

3.07

9.45

-68

-51

172

14

8.14

b4:99:4c:74:c5:92 Wire3Coil

-59.29

2.82

7.97

-67

-53

156

10

6.41

b4:99:4c:74:b2:89 CHIP2Louise

-61.53

2.4

5.78

-67

-58

97

28

28.87

b4:99:4c:74:d6:99 NoBattery

-60.29

2.82

7.95

-66

-54

78

18

23.08

b4:99:4c:74:ef:0a MIFA

-64.29

1.96

3.82

-68

-60

21

17

80.95

As one can see the strongest signals are from CC2590 combo with and without WIRE antenna, and from CC2540 with WIRE antenna. The percentage of FCS errors that demonstrate the data loss is also the least in CC2590+CC2541 combo and in CC2540 with the WIRE antenna.

 

In the RF dead zone – the kitchen

The kitchen is one of the most challenging from RF interference perspective environments. Here  only a few devices survived.

KitchenTable

The table below shows the stats for all the devices in the kitchen.

UUID Alias MeanRSSI StdDevRSSI VarianceRSSI MinRSSI MaxRSSI Count FCSerrors FCSerror%
68:9e:19:18:83:f7 CC2590 Wire

-60.59

1.87

3.5

-66

-57

133

0

0

20:91:48:4c:9b:c5 WIRE

-64.62

1.7

2.87

-70

-58

125

6

4.8

b4:99:4c:74:e8:c5 Roach1

-68.07

1.45

2.1

-73

-65

114

10

8.77

68:9e:19:18:7a:a0 CC2590 MIFA

-68.44

2.94

8.63

-76

-62

114

14

12.28

b4:99:4c:74:b7:d5 Roach2

-74.67

1.28

1.65

-77

-72

63

33

52.38

b4:99:4c:64:69:26 TiDev

-75

1.68

2.83

-79

-71

48

21

43.75

b4:99:4c:74:e4:8d Molex Ant

-75.98

1.01

1.02

-79

-73

46

34

73.91

b4:99:4c:74:c5:92 Wire3Coil

-76.94

1.48

2.18

-80

-75

32

25

78.13

b4:99:4c:74:d6:99 NoBattery

-77

2.6

6.77

-81

-71

13

7

53.85

b4:99:4c:74:b2:89 CHIP2Louise

-80

0

0

-80

-80

4

4

100

b4:99:4c:74:ef:0a MIFA

-79.67

0.47

0.22

-80

-79

3

3

100

20:91:48:4c:a3:8a CHIP1Molly

-80

1

1

-81

-79

2

1

50

Again in the kitchen are the strongest signal and lowest errors are in CC2590 combos and in WIRE antenna.

When we tried to walk beyond the kitchen table we only observed CC2590 combo surviving the distance and kitchen interference with high rate of data errors.

In the long corridor

We also did measurements in the corridor far away from the kitchen we got slightly better results.

Coridor

UUID Alias MeanRSSI StdDevRSSI VarianceRSSI MinRSSI MaxRSSI Count FCSerrors FCSerror%
68:9e:19:18:7a:a0 CC2590 MIFA

-66.67

2.92

8.52

-78

-63

87

1

1.15

20:91:48:4c:9b:c5 WIRE

-71.19

2.89

8.33

-81

-68

68

7

10.29

b4:99:4c:74:d6:99 NoBattery

-74.62

1.74

3.04

-83

-72

60

13

21.67

68:9e:19:18:83:f7 CC2590 Wire

-73.67

3.28

10.76

-80

-67

52

7

13.46

b4:99:4c:64:69:26 TiDev

-72.45

3.06

9.34

-79

-67

42

4

9.52

b4:99:4c:74:e8:c5 Roach1

-75.35

1.85

3.4

-78

-71

34

9

26.47

b4:99:4c:74:c5:92 Wire3Coil

-77.6

0.8

0.64

-79

-76

15

4

26.67

Not surprisingly the strongest signals and lowest FCS errors are from CC2590 combo with and without WIRE antenna, and from CC2540 with WIRE antenna.

Walking towards the advertising devices

The last test in this document we have walked from the area past the kitchen towards the advertising devices. Below is the graph that shows graphs and tables with RSSI values.

WalkingTowardsDevices

UUID Alias MeanRSSI StdDevRSSI VarianceRSSI MinRSSI MaxRSSI Count FCSerrors FCSerror%
68:9e:19:18:7a:a0 CC2590 MIFA

-58.8

10.72

115.02

-74

-34

51

2

3.92

68:9e:19:18:83:f7 CC2590 Wire

-58.66

11.73

137.62

-77

-34

50

5

10

20:91:48:4c:9b:c5 WIRE

-61.04

9.8

95.95

-76

-38

45

3

6.67

b4:99:4c:64:69:26 TiDev

-58.64

12

144.09

-77

-30

42

3

7.14

b4:99:4c:74:e8:c5 Roach1

-59.68

9.36

87.57

-78

-43

31

2

6.45

b4:99:4c:74:d6:99 NoBattery

-61.81

12.61

159.04

-80

-42

27

3

11.11

b4:99:4c:74:e4:8d Molex Ant

-61.61

10.48

109.8

-82

-47

23

4

17.39

b4:99:4c:74:b7:d5 Roach2

-62.95

8.07

65.09

-76

-51

21

1

4.76

b4:99:4c:74:c5:92 Wire3Coil

-64.68

7.5

56.22

-77

-50

19

4

21.05

b4:99:4c:74:ef:0a MIFA

-59.94

8.04

64.68

-74

-49

16

1

6.25

b4:99:4c:74:b2:89 CHIP2Louise

-64

4.55

20.67

-72

-58

12

2

16.67

20:91:48:4c:a3:8a CHIP1Molly

-63.5

6.95

48.25

-75

-52

12

5

41.67

Just like in previous experiments, we can see that the strongest signals and lowest data errors levels are in CC2590 combos.

Conclusions

We have conducted experiments indoors using different antenna configurations and designs on CC254x IoT SoC technology.

We have consistently observed that the strongest signals that survived both RF interference and distance are

  • CC2590+CC2541 combo
  • WIRE antenna

 

Read More

We have finally release a stable version of the monBridge

We have release a stable version of the monBridge, Bluetooth to WIFI bridge, that takes BLE signal from the MonBaby monitor and converts it into WIFI. This app greatly extends the range of MonBaby monitor. Assuming that the monBridge is in the vicinity of the baby crib, you can now walk around your apartment and your house. The range is really is as good as your wireless WIFI router. Please see our video where we explain how to use it.

Read More

A blog about the MonBaby

Karen Lightman, Executive Director of MIG wrote a blog about the MonBaby technology-showcase at MIG Congress.

Here is a picture of Eugene, our COO with Karen

IMG_9680

 

Read More

MonBaby is a finalist at MEMS Technology Showcase – MIG 2015 Congress

Mondevices went to MEMS Industry Group as a Technology Showcase finalist! The results will be announced in a few days, we are holding our fingers crossed.

Screen Shot 2015-11-05 at 1.19.28 PM

We got a bunch of references in press for that:

Memscongress

Reuters

Marketwatch

Here is a snippet:

MEMS Industry Group (MIG)’s annual MEMS & Sensors Technology Showcase atMEMS Executive Congress® US 2015 (November 4-6, 2015 in Napa, CA) highlights some of the newest and most compelling MEMS/sensors-based applications and technologies on the market. MIG today announced the shortlist of finalists who will compete for the title of winner at this year’s event.

 

MonBaby Breathing and Rollover Monitor

Anxious parents can sleep more soundly now that MonBaby® is on the scene. An award-winning baby monitor that snaps like a button onto any article of a child’s clothing, MonBaby gives new parents peace of mind and helps them to sleep better knowing that they will receive an audible alarm on their smartphone if the baby rolls onto his or her stomach during sleep or stops breathing.”

 

Read More

Mondevices at ABC Kids Expo – 2015

Mondevices demoed the MonBaby Smart Button monitor at the 2015 ABC Kids Expo in Las Vegas! Our team was on the ground at booth #2236 now through October 21.

ABC Kids is one of the nation’s largest expos for baby and children’s products. We’re excited to connect with journalists and retailers, and also to see some of the other wonderful new additions to the children’s products industry.

Check out the expo twitter updates: https://twitter.com/ABCKidsEXPO

IMG_5042

 

 

Read More

monBridge – BLE-to-WIFI bridge

We end up developing our own solution for BLE-to-WIFI bridge. Check it out: monBridge

You can find it on google play.

See the video for the demo of the monBridge app on the Android stick:

 

Read More

Monbaby on Telemundo

http://www.telemundo.com/shows/un-nuevo-dia/videos/un-nuevo-dia/extras/raul-garcia-y-adamari-lopez-te-traen-tecnologia-para-monitorear-los-bebes-video-914736

Read More

Product Launch!!!

Dear Backers/Customers,

Thank you for your patience and sticking with us all the way. We have great news for you – today we have started shipping to our first customers and backers!

Here are pictures of the 1st batch ready for shipping.

2015-03-04 13.22.27
2015-03-02 17.49.31
2015-03-04 13.22.51
2015-02-24 13.57.05

 

 

 

 

 

 

 

 

You should be receiving your MonBaby Smart Button in about 5 business days or so.

Now, some very important notes. Before using your MonBaby Smart Button, please download the latest versions of our application that are now available from monbaby.com/app/index.html or directly from iTunes and Google Play. We are shipping the MonBaby Smart Button with the updated manual, please make sure that you read the manual carefully before using the device and follow all the instructions.

In case you have any suggestions, feedback, questions or concerns (in other words anything), please contact us at support@mondevices.com. We have also setup a support page on our website (available at: monbaby.com/support/) through which you can submit your feedback and inquires at anytime. You feedback is very important for us, especially if it’s constructive criticism and we will be happy to address it.

Best,

The Mondevices team

 

Read More

MonBaby at CES

MonBaby at CES

The Mondevices team was showcasing The MonBaby Smart Button at CES (Consumer Electronics Show) in a Las Vegas Nevada 2015, the world’s premiere trade show for new technology. We were exhibiting in Eureka Park, the event’s flagship destination for startups. In just the first day we’ve received lots of buzz from press and attendees visiting our booth, and we’re excited for what the rest of the showcase holds!

MonBaby team at CES in Eureka park

MonBaby team at CES in Eureka park

 

 

 

 

 

 

 

 

You can follow our updates from CES on Twitter @mondevices, and follow all the action from UP Global at Eureka Park @UPGlobalHQ.

Read More

Electronics has arrived

MonBaby electronics, which was manufactured last week by PNC, has arrived!

And here is the first view of PCB’s (Printed Circuit Boards), which are brains of the future MonBabies:

Read More

New [final] design

We have finalized a new enclosure and snap design. Note that this is a 3D printed prototype made of a transparent plastic. The real plastic is going to be white, blue or pink. The picture is attached below

Proto

Read More